Answer:
A) chemical reactions.
Explanation:
"Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: As we can see, water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change.
"
B. tiny algae and plankton decomposed under conditions of heat, pressure, and low oxygen.
Explanation:
Oil is most likely to form where tiny algae and plankton decomposed under conditions of heat, pressure and low oxygen.
Coal will form when plant materials like twigs, leaves and tree trunks decomposed under conditions of heat, pressure and low oxygen.
- To form oil, algae and plankton will be gathered with sediments in a basin.
- Rapid burial causes the algae and plankton to be cut off from aerobic environment that would lead to the decay of these organisms.
- They are buried alive and as the basin subsides, temperature and pressure acts to produce kerogen.
- Further cracking produces oil and gas.
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Large ecosystems always have higher biodiversity than smaller ecosystems. A large area of a forest will likely have higher biodiversity than a smaller area of a small area and small ecosystems always have low biodiversity.
Answer:
5.37 °C
Explanation:
The optimal condition for most enzymes in the small intestine is 37 °C.
Enzymes are responsible for mediating several biological processes in the human body. The optimal condition for enzymes in the small intestine has an optimum pH of about 7.5 and the temperature is 37 °C, which is the normal body temperature of the human body.
Hence, the correct option is "5. 37 °C".
