Answer:
D. Oxygen
Explanation:
Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.
I think it’s B. Hunting and gathering !
Answer:
When there are 5 molecules of fructose on each side of the membrane.
Explanation:
The solution will reach equilibrium fro fructose when there are 5 molecules of fructose on each side of the membrane.
A membranous system is said to be at equilibrium when there are equal concentration of a particular molecule on both sides of the membrane.
<em>Hence, for a membranous system with 10 molecules of fructose on one side, an equilibrium can only be reached for fructose when there are 5 molecules on one side and the remaining 5 molecules on the other side. </em>
Fossil fuels coal<span>, </span>petroleum, and natural gas <span>are our main sources of energy
, these sources gives us energy and producing the vast majority of fuel,</span>electricity<span>, and heat used by people across the globe but cause the global warming and increase the temperature of the earth
hope it helps</span>
