A specific location or point on a map.
Answer:
The electromagnetic radiation per-unit- area increase by 42.65 times.
Explanation:
The radiation per-unit- area (P) is directly proportional to the fourth power of the temperature. Thus,
P ∝ T⁴
For, when the temperature is raised from T₀ to T₁ , the radiation per-unit- area is related to as:

T₀ = 900 K
T₁ = 2300 K

So,
<u>P₁ = 42.65 P₀</u>
<u>The electromagnetic radiation per-unit- area increase by 42.65 times.</u>
This should be under mathematics not geography.
Humans will survive by looking for alternative water sources as the Sun becoming a red giant means rapid evaporation of the earth's ocean.
<h3>What is Evaporation?</h3>
This is referred as the type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
Water is important for our daily living and activities which is why alternative sources must be designed to tackle the rapid evaporation pattern.
Read more about Evaporation here brainly.com/question/24258