Which human activity has had the greatest impact on climate change?

Air pollution.

Explanation: Global warming is a result of human activity that lead to change in the global temperature.

The main cause of global warming is green houses gases. These gases are released by the burning of fossil fuels or due to the gases released from the automobiles.

The average temperature and climate of the earth has been changed because of global warming caused by the human activities.

compost can be added to topsoil as a:

pesticide

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.