Answer:
The temperature at higher altitudes decreases as we move away from the ground. This is because the air gets thinner at higher altitudes and is less able to trap heat. The rate at which the temperature decreases with altitude is known as the "lapse rate."
The standard lapse rate is about 6.5°C per 1000 meters of altitude gain. So, to find the temperature at an altitude of 2000 meters, we can use the following formula:
Temperature at altitude = Temperature at sea level - (Lapse rate * Altitude / 1000)