Answer:
size and density of a trees rings can give information on past climates
Explanation:
Answer:
when animals breathe or die they give off carbon dioxide, humans when we eat and breathe we are exalting carbon dioxide that goes into the atmosphere.
Answer:
"water, air, sunlight, soil, plants, microorganisms, insects and animals. Ecosystems may be terrestrial – that is, on land – or aquatic. Sizes of ecosystems vary; they could entail a small puddle or an enormous swath of desert. Likewise, natural ecosystems can look quite different from one another."
Explanation:
It helps you understand living space and how organisms adapt