Organism because this includes just one thing while the other ones involve a selected group.
Major human processes affecting the water cycle on land. storage of water in reservoirs; groundwater mining; irrigation; urbanization; combustion; deforestation; wetlands
Raising cattle and farming rice contribute to air pollution by,
<span>Releasing the greenhouse gas methane into the atmosphere</span>
Oncogenes result from turning on, or activating proto oncogenes. Proto oncogenes are genes that code for positive cell cycle regulators, so proto oncogenes code for proteins that turn on cell division. Proto oncogenes are normal genes, but when they are mutated, they become oncogenes. Oncogenes are expressed too much, which makes them turn on cell division too much, which is cancer.