Ocean exploration is limited by lack of technology, expense, and favorable weather conditions.
Answer: coal
Explanation: coal is formed when layers of peat are compressed by the layers of rocks above.
Plant communities are broadly distributed into biomes based on the form of the dominant plant species. For example, grasslands are dominated by grasses, while forests are dominated by trees. ... Biomes also change with elevation, high elevations often resembling those found at higher latitudes.
There are approximately 30 trillion cells present in the human body.
<h3>How many different kinds of cells are there in an adult human body?</h3>
Humans are intricate, multicellular entities. Our bodies contain "specialized" cells. This implies that every cell type has a distinct and important role. Because of this, each of the body's 200 different types of cells has a unique structure, size, shape, and function, as well as a variety of organelles.
Human cells are not the only ones in our bodies, of course. According to recent studies, the average human contains about 38 trillion bacteria. With this, the overall number of cells now exceeds 68 trillion (human or not).
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I would say B is the answer
