The answer is: [D]: "adapting to droughts and few sources of water" .
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Answer:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Explanation:
The amount of the sample of the radioactive isotope decays exponentially in time, the amount of mass of the sample as a function of time (
), in grams, is described below:
(1)
Where:
- Initial mass, in grams.
- Time, in years.
- Time constant, in years.
The time constant can be found from half life (
), in years, described in statement:
(2)
If we know that 
, 
and 
, then the current amount of the sample is:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Answer: Convective
Explanation:
Convective Lifting is arguably the most common form of lifting and involves the heating of the Earth's surface such that surface water gets evapotranspirated from the ground and plants.
As the clouds rise, they encounter cooler temperatures and thus cool down and condense into clouds. Higher temperatures mean higher convection.
The Amazon lies on the Equator which receives the most direct sunlight so the surface gets heated a lot. Water therefore collects faster and condenses more over the Amazon which leads to more precipitation over the Rainforest.
Answer:
Much of the X-ray and UV radiation from the Sun is absorbed in the thermosphere. When the Sun is very active and emitting more high energy radiation, the thermosphere gets hotter and expands or "puffs up".
Explanation:
