Hydrogen, oxygen, nitrogen, and carbon
Energy taken from ATP and NADPH is used to make energy-rich carbohydrates.<span>The light-independent reactions are reactions in which ATP<span> and NADPH is used</span> for the conversion of carbon dioxide into </span><span>energy-rich carbohydrates. So, the carbohydrates are produced and not used up as stated in choice B. Carbon dioxide is neither broken off of molecules with three carbons nor were used up in the light-dependent reactions, leaving choices a. and b. as wrong ones.
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So you know that there are 3,000,000 of bacteria in one gram of soil so you multiply 3,000,000×10 and you get 30,000,000. Then you just check all your options. So it's 3×10^7.
Extinction happens when there is a major climate change, then some species are unable to adapt to those changes, so they become extinct. Extinction basically occurs when species are unable to adapt quickly enough to the environment
