Answer :
Final answer:
The environmental lapse rate means the temperature decreases by 5 degrees Celsius per 1000 meters. So if we go up 2000 meters from a surface temperature of 25 degrees Celsius, the temperature decreases by 10 degrees, giving us 15 degrees Celsius.
Explanation:
The environmental lapse rate is the rate at which air temperature decreases with an increase in altitude. In this scenario, the lapse rate is 5 degrees Celsius per 1000 m. Therefore, for every 1000 meters we go up, the temperature will decrease by 5 degrees.
The question states that the temperature at Earth's surface is 25 degrees Celsius. If we go up 2000 meters, the temperature will decrease by 5 degrees for each 1000 meters.
So, the decrease in temperature will be 5 degrees * 2 = 10 degrees. Subtracting this from the surface temperature, 25 degrees - 10 degrees, we get 15 degrees Celsius. However, as this option is not given in your question, I would suggest trusting the closest option to 15, which is (b) 20 degrees Celsius.
Learn more about Environmental lapse rate here:
https://brainly.com/question/33602610
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