Answer:
A
Explanation:
B can be supported with surveying people,
C can be supported by inspecting Grass under a microscope
Answer:
The earth-sun-moon system affects a lot of things on earth, some of which are agriculture, tides, seasons, temperature, weather/climate, living things, ect.
Explanation:
Sorry if that doesn't really help, I tried
D. Predators
Predators keep populations of other species in check. This was pretty clearly demonstrated in Yellowstone National Park after the wolves were eradicated there. The deer populations increased to the point that the aspen trees nearly disappeared due to the saplings' being eaten by deer. Since the reintroduction of wolves to the park, the aspen trees have begun to flourish once again.
Plant trees on the banks of rivers or lakes. ...
Proper use of products by industries. ...
Use the bicycle. ...
Reduction of the use of chemical products in plantations. ...
Control spills.
Answer:
I believe the answer is Dissolved Oxygen.
Explanation:
Dissolved oxygen (DO) is the amount of oxygen that is present in water.
