Which items exist on earth because of green plants? check all that apply.

an atmosphere containing oxygen

wooden furniture

food, including vegetables, fruits, and meats

fibers to make cloth

drugs such as aspirin and digitalis

fossil fuels such as oil, gas, and coal

nutrient-rich soil

The distribution of related animals and plants across the world

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit