YES.
D. All of the above
The study of the earth and its features and of the distribution of life on the earth, including human life and the effects of human activity.
there is alot of people living on earth
It is challenging to identify any human activity that does not affect the Earth system in some way. However, simple personal activities such as sleeping or sitting quietly may have minimal direct impact on the broader Earth system.
This would be science, into the health of planet Earth.
all human and animal activity would die
Breathing. Except that respiration needs Energy.
Yes. Deforestation, which is primarily a human activity, affects the earth's capacity to control global temperature.
Refrain from procreating yourself. It is human overpopulation (and subsequent human activity caused by too many people) that is endangering Earth.
True
Human activity is primarily concentrated in the troposphere, the layer of the atmosphere closest to the Earth's surface. This is where we live, breathe, and where weather occurs. The majority of commercial aviation also takes place in the lower part of the troposphere.
Humans. All environmental problems on Earth are caused by human activity.