Answer:
Unlike a wild guess, a hypothesis is based on observations and it must be testable.
Explanation:
Answer: D. magnesium
Explanation:
Chlorosis is a condition in which the leaves of the green plants do not have enough nutrients so as to synthesize the chlorophyll to keep the leaves green. Thus the leaves loose their color. The loss of chlorophyll from the older leaves is the characteristic feature of magnesium deficiency. It happens when the soil in which the plants are growing lacks magnesium.
Answer:
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The answer is b. mutations.
