The best and most correct answer among the choices provided by the question is <span>b. oil</span> <span>.
</span>A thick, black liquid formed from the buried remains of microscopic marine organisms is oil .
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Answer:
The correct answer is - option C.
Explanation:
A longitudinal wave with higher vitality have more noteworthy plentifulness. Abundancy is the separation between the covering and trough of the wave. The crust is the topmost layer of the wave while trough is present at the bottom portion of the wave.
In the event that the separation among crust and trough of the wave is higher so the amplitude is likewise more prominent and we can say that the wave contains a high measure of vitality and the other way around. The state of the structure of the wave simply like a hill.
Thus, the correct answer is - option C.
<span>The answer is Metamorphic rocks.
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat and pressure causing profound physical or chemical change. The protolith may be a sedimentary, an igneous, or even an existing type of metamorphic rock.</span>
<span> Stoma (Stomata-plural) controls how much carbon dioxide is coming into the leaf and, more importantly, how much water is leaving the leaf.</span>
During the day, specially when it is very hot and dry and these plants would lose too much water through evaporation, the stomata remain closed. Once it is daylight and the stomata close, they convert acid back into carbon dioxide that then is available for photosynthesis. <span>At nighttime, the stomata open. The plants bring in carbon dioxide at night. </span>