B)hydrogen ...................
Answer:
C. A stretch of raised land, often built to help control flooding and the flow of a river.
Explanation:
Embankments are made typically of construction adjacent to the river from spoil excavated from its bank.
A cell is a microscopic living organism which is the smallest part of an organism such as a plant or animal.
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The answer is D. 12
Hope i will help you angain sometime :)
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The physical state of fluorine at room temperature is a gas, a pale yellow in colour