Which of the following is not a way that humus affects the properties of soil?

a. humus expands with increased moisture levels
b. humus increases the movement of water and air in soil.
c. humus decreases the porosity of soil
d. humus acts as a basis for soil life

Explanation: just took the test

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .