Answer:
Hydrogen gas has the highest calorific value of 150 KJ/g among all the fuels. So, hydrogen gas is considered to be an extremely good fuel.
Explanation:
Answer:
About 5billion years ago is the correct option.
Explanation:
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The difference between the two is that swamps usually have deeper standing water and are wet for longer periods of the year, according to the National Parks Service. Marshes have rich, waterlogged soils that support plant life, according to National Geographic.
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Answer:
D)
Explanation:
Color is determined by a sex-linked gene, X gene, so, in order to that, the gene is maternally inherited. When one gene is related to the X chromosome, and one of the alleles is recesive and the other, logically dominant, the first generation will be of a single color, and the second generation will be of the other single color.
