Ahot air balloon pilot wants the balloon to quickly rise several feet higher so it will be above some trees in the distance. which best explains how the pilot can make the balloon rise?
a. the pilot can adjust the temperature inside the balloon so it is equal to the temperature of the surrounding air.
b. the pilot can adjust the density of the air inside the balloon so it is equal to the density of the surrounding air.
c. the pilot can decrease the temperature inside the balloon so it is cooler than the surrounding air.
d. the pilot can increase the temperature inside the balloon so it is warmer than the surrounding air.

The correct answer is (D) The pilot can increase the temperature inside the balloon so it is warmer than the surrounding air.

This is based on the phenomenon that warm air rises up so the pilot should increase the temperature inside the balloon as compared to the surrounding air. This will rise the balloon up. The hot air will make the balloon  go up fastly.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

wegner's theory did not explain how the continents could move

explanation: