All of my scores say it's 29 to thirty, which is the correct answer, so I'm afraid I don't know, my suggestion here would be to go with 20, because if it was forty then we would surely be dead. <span />
Answer:
I believe the answer is A) energy pyramid
Explanation:
It's talking about trophic levels, as opposed to individual organisms.
None because they are children play toys not scientific tools!
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The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.
Answer:
to know what you're talking about
