Match each conservation effort with the resource it could directly help save.
saving forests
conserving freshwater aquifers
reducing CO2 emissions that contribute to climate change
Walk or use a bicycle for short-distance
travel.
Use computers for communication and
taking notes.
Treat sewage water and use it in factories.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

"a.) well–developed vascular system."

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.