The troposphere has the highest density.
Answer:
A. wild life survey
Explanation:
That's was the only answer that involved observing the wild life while the manufacturing plant is operating.
Answer:
Living organisms use oxygen and release CO2 during respiration.
Test tube A consists of snail which continuously uses the oxygen produced and releases carbon dioxide.
Hence, test tube A will have the highest concentration of carbon dioxide.
the answer is 3,190,000 kcals
B or D (I’m not sure which one but it’s either one of these two) (if it’s wrong sorry)
