Answer:
HIV/aids impact social when an infected person doesn't follow the right precautions but rather prove stubborn about it
The half-life of Carbon-14 is 5, 730 years. you find a sample where 1.5625% of the original Carbon-14 still remains how old is that sample ?
Answer:
The sample is about 34380 years old.
Explanation:
The amount of Carbon-14 mass diminishes exponentially in time, whose model is described below:
[tex]\frac{m(t)}{m_{o}} = e^{-\frac{t}{\tau} }[/tex] (1)
[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex] (2)
Where:
[tex]m_{o}[/tex] - Initial mass, in grams.
[tex]m(t)[/tex] - Current mass, in grams.
[tex]t[/tex] - Time, in years.
[tex]\tau[/tex] - Time constant, in years.
[tex]t_{1/2}[/tex] - Half-life, in years.
If we know that [tex]\frac{m(t)}{m_{o}} = \frac{1.5625}{100}[/tex] and [tex]t_{1/2} = 5730\,yr[/tex], then the age of the sample is:
[tex]\tau = \frac{5730\,yr}{\ln 2}[/tex]
[tex]\tau = 8266.643\,yr[/tex]
[tex]t = - \tau \cdot \ln \frac{m(t)}{m_{o}}[/tex]
[tex]t = - (8266.643\,yr)\cdot \ln \frac{1.5625}{100}[/tex]
[tex]t \approx 34380.002\,yr[/tex]
The sample is about 34380 years old.
4. Search for 39 05 52.46N 84 30 56.16E and zoom out to an eye altitude of ~9,000 meters. The large-scale structures in this sedimentary environment are asymmetrical ripples (known as dunes at this size). Zoom in and out and examine the sedimentary environment. What type of sedimentary environment is this
Answer:
Eolian sedimentary environment
Explanation:
Winds can transport many different-sized particles of material from the ground through the process of erosion. These particles might travel many kilometers until they deposit somewhere. Regions with scarce vegetation have too much dust and grain-sized particles that move and crush each other, increasing erosion. This process is known as eolic erosion.
The most prominent accumulations of wind deposits are the dunes. However, there are other smaller accumulations such as the ripples and other larger ones called Draas. Their main differences are in addition to size, is the wavelength between them.
Dunes are winds deposits, formations that are, in general, typical of deserts. Dunes are orientated according to the direction and speed of winds, to the presence of loose material, and vegetation. Strong winds transport material until it collides with an object or obstacle where it is deposited, originating a new dune.
Dunes are very dynamic formations that are constantly being remodeled by the direction and strength of the winds. Dunes always have a soft slope and a sharp one. The soft slope is directed to the area or region where the wind is coming from and is the product of the wind erosion on the same dune. The opposite sharp slope is protected from the wind and is the deposition place, where the wind losses strength and the carrying material falls, depositing in this side of the dune.
Sinkiang is a desert in China. Placing yourself at 39 05 52.46N 84 30 56.16E lets you appreciate the duned shape of the ground. By zooming in and out, you can notice the soft and sharp slopes that are forming each of the dunes and the distance between them.
is there a big difference between european portuguese and brazilian portuguese than to europeans portuguese?
Answer:
Yes
Explanation:
-Accents
-Grammar and spelling
-Formal and informal speech
-Vocabulary
-Pronunciation
Answer:
They have different accents and they pronounce things differently, When and Where they were created. More different than Brazilian Portuguese.
What are igneous rock bodies? Discuss various igneous rocks body.Illustrate with help of diagram
Answer:
The liquid phase of most materials is less dense than the solid phase. Thus, molten rock (magam) is less dense than solid rock. When a body of magma forms deep beneath the Earth's surface, it tends to rise buoyantly like a hot air balloon rising through the atmosphere
what is natural disaster
What is the optimum utilization of resources
Answer:
Optimum Utilization of Resources Management utilizes all the physical & human resources productively. This leads to efficacy in management. Management provides maximum utilization of scarce resources by selecting its best possible alternate use in industry from out of various uses.23-Jul
Explanation:
Optimum Utilization of Resources Management utilizes all the physical & human resources productively. This leads to efficacy in management. Management provides maximum utilization of scarce resources by selecting its best possible alternate use in industry from out of various uses.23-Jul
Answer:
Optimum Utilization of Resources Management utilizes all the physical & human resources productively. This leads to efficacy in management. Management provides maximum utilization of scarce resources by selecting its best possible alternate use in industry from out of various uses.
Os prováveis agentes que atuam na degradação das rochas retratadas são:
A) A chuva e o calor solar
B) a correnteza e a chuva
C) O calor solar e o vento
D) O vento e a correnteza
Por favor preciso disso pra hoje (agora)
Answer:
letra c)
Explanation:
espero ter ajudado
"Why Do We Study the Sun?" How does the Sun help to protect life on Earth?
Answer:
We study about the sun because
The sun is a normal star. It is much closer to us than any other star, and by studying the sun, we can therefore learn more about other stars. The better we understand other stars, the more we know about the Milky Way. From there we know more about other galaxies and in the end we learn more about the universe.
Explanation:
How does the Sun help to protect life on Earth?
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.
The Ottoman Empire became weak because ethnic and religious groups _____.
A) immigrated to the area
B) wanted autonomy
C) emigrated from the area
D) attacked the rulers
Answer:
Because it economy was disturb
hope you have understand
thanks
Question 2 of 20
Which accurately describes apartheid?
A. It was started by Nelson Mandela.
B. It ended due to international pressure.
C. It kept the majority white population in power in South Africa.
D. It ended in the early 20th century.
Answer:
it ended due to international pressure.
1. The _____of a place does not change over a long period of time
2.The world is divided into_____major climatic regions
3.The rays of the sun become _____as one moves away from equator
4.Places near the cost have a _____climate
5.The_____Zones remain cold all the year round
Ocean life appears to be affected by a relatively small number of variables such as temperature, density, available sunlight, available nutrients. If any one of these variables changes how do you think it might it impact the human food web?
Answer:
A change in one of these variables can cause a population decrease in some living being that has the ocean as its habitat. This decrease would affect the feeding of animals that consume this living being and this will disharmonize the entire food chain of consumers above this living being.
Explanation:
Although the ocean is affected by a relatively small number of variables. These variables are essential for the maintenance of living beings within the ocean. If one of these variables is modified, in the long term, many species of living beings can be negatively impacted in an intense way, even having their survival in danger and decreasing their population density. This would be very harmful to the harmony of food chains within the ocean. That's because, as you may already know, the food chain is a feeding sequence between living beings, where one species feeds on another, which shows how one species depends on the other to survive.
Thus, if there is a change in the variables that act on the ocean and this change causes the population reduction of a species of living being. The species of animals that feed on this living being will also be affected as they will not have enough food to sustain themselves. Isss will decrease the population density of this second species, affecting the species that will feed on it, and so on.
The Sahara Desert in northern Africa is the largest region in the world having the BWh climate. Name another desert in each of the northern and southern hemispheres having the BWh climate.
Southern Hemisphere:
Northern Hemisphere:
Answer:
Northern Hemisphere: Thar desert
Southern Hemisphere: Great Australian desert
Explanation:
The BWh climate is a desert climate. It is a hot and arid climate o the deserts, as classified by the Köppen climate classification of BWh and BWk. The BWh zone falls on the hot and arid regions.
One desert in the Northern hemisphere which contains BWh climate is Thar desert in India. It is a very hot desert with very sandy and rocky surfaces.
One desert in the Southern hemisphere having BWh climate is the great Australian desert. It is a sandy desert with very less precipitation.
The major physiological division of Ethiopia
Answer:
Western Highlands, the Western Lowlands, the Eastern Highlands, the Eastern Lowlands, and the Rift Valley.
Explanation:
There are five major physiological division of Ethiopia i.e. the Western Highlands, the Western Lowlands, the Eastern Highlands, the Eastern Lowlands, and the Rift Valley. Ethiopia is a country which is rich in geographical diversity. It comprised of rugged mountains, flat-topped plateaus, deep gorges and river valleys. Erosion, volcanic eruptions and tectonic movements are the causes that contributed to the diverse topography Ethiopia.
sumulat ng isang iskrip ng napapanahong isyu sa ating bansa
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
✍︎ In positive psychology research, gratitude is strongly and consistently associated with greater happiness. Gratitude helps people feel more positive emotions, relish good experiences, improve their health, deal with adversity, and build strong relationships. People feel and express gratitude in multiple ways.
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
꧁❀ ⁱ ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ ❀꧂
Why did cover crops fall out of fame in the 20th century?
Answer: The cover crops fell out in favor in the 20th century is because of the invention of synthetic fertilizers.
Understanding Coordinate Systems
1. Geographic coordinates appear at the four corners of the USGS map. What are the values of latitude and longitude lines that enclose the Yellow Rock East map? (1) Top: Left: Right: Bottom:
2. UTM Zone 1 runs from 180°W to 174°W. The Four Corners region lies in UTM Zone 12N. What is the range of longitude degrees covered by Zone 12N? (1)
3. How many SPCS zones are in California based on NAD 83 (SPCS 83)? (1)
Answer:
Explanation:
A coordinate system is a used as one r more coordinate to uniquely determine the position and points and the other coordinates on the map. The yellow rocks lies at an latitude of 33 41' and 150 37'
write 7 087 000 in standard form
Sendo assim, podemos afirmar que
população do Brasil é
Hi Friends!
Please help me out with this question given below:
Why is erosion considered a slow process?
Explanation:
Weathering has deteriorated and broken up the sandstone, making it ready for destruction. Erosion occurs when ice, moisture, wind, or gravity take up and transport rocks and materials to a new location. They can't transport as much sediments if they slow down. Rock formations are where the sediment is dumped or deposited.
What evidence exists to support the existence of Pangaea?
DAT Explain the significance of resouras. Suggest any three ways to conserve resources to achieve sustainable. development
Answer:
Explanation:
Resources may be explained as a range of products, equipment, manpower and all other things an individual or organization has at its disposal in other to function prey and effectively.
Resources may also be natural which will include all resources borne out of nature such as air, sunlight, mineral resources and all resources devoid of human doing.
Resources are required on other to ensure that an organization functions well as it will be impossible to produce without the needed help (resources). Similarly, it will be impossible to survive without the availability of nature resources as they help us breath, make money, in food production and so on.
Resources conservation involves the effective and efficient use of resources. Conservation of resources can be enhanced in ways such as :
Embracing the use of renewables : The use of renewable energy sources provides a clean choice of energy which is obtained from nature's routine. The use of solar energy frolic the sun or wind powered energy obtained from natural breeze or wind.
Embrace Recycling : Recycling involves the reuse of already used materials as a form of raw material to make new products, these ensures that optimum use of the resources at our disposal is achieved while also ensuring that we have a cleaner environment.
Use of reusable goods or materials : The large influx of onr-tine use products such as disposables and certain plastic materials has contributed to large quantities of water materials on landfills, they adoption of reusable materials which can be used over certain period of time will go a long way in controlling these waste Influx.
Ozone pollution would be most favored in:_________
a. sunny climates during the winter when volatile organic compounds can react with NO.
b. sunny climates in summer when coal is burned to generate electric power.
c.sunny climates during the summer when volatile organic compounds can react with NO.
d. sunny climates in winter when coal is burned to generate electric power.
Answer:
b. sunny climates in summer when coal is burned to generate electric power.
total country in the world
Answer:
There are 195 countries in the world comprises of 193 countries that are member states of the United Nations and 2 countries that are non-member observer states
synthetic religious are common in a. the southwestern States B. French Canada C. Latin America D. Western Europe
Answer:
I think in Western Europe: D.
What is the carrying capacity of an organism and what factors affect it?
Answer:
carrying capacity can be defined as a specise average population size in a particular habitat
What does the Representative function mean?
Is the air pollution problem in Seoul Korea getting any better?
Answer:
no its not
Explanation:
n 2019, thecountry had a population of around 50 million people, out of which, half live in the capital city of Seoul. At the end of 2020, Seoul was experiencing “Good” air quality with a US AQI figureof 41. This is based on recommendations from the World Health Organisation
Explanation:
no its not
ty for the points
mesosphere seems to be very important for the earth atmosphere why
Answer:
mesosphere seems to be very important for the earth atmosphere because It keeps the planet warm and protects us from the harmful radiation of the Sun. It also ensures a healthy balance between oxygen and carbon dioxide so that life can be sustained on the planet.hope it helps. stay safe healthy and happy.Uniformitarianism is: Group of answer choices a geochronological dating method used to determine the age of fossils the theory that natural processes that occurred in the past still occur today the best way to explain evolution by natural selection the theory dealing with the similarities between all hominins an outdated geological concept
Answer:
The correct answer is Option b (The theory...........occur today).
Explanation:
The hypothesis that throughout the previous world more or less the same scientific processes, as well as methods operating throughout the existence that has ever been functioned, could be determined as Uniformitarianism.While it may be applicable in whatsoever field, it would be an essential pillar for the establishment of geological technology.The other alternatives are not related to the given scenario. So the above is the right one.
