What is the main advantage of burning hydrogen, and what is the main disadvantage? What will be an ideal response?
Hydrogen burns very cleanly. There is currently no inexpensive abundant source for it.
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What beneficial effects might Russia see from climate change?
A) Greater contact between wildlife and indigenous human populations in northern Russia as wildlife is forced to widen its search for food. B) Navigation may extend throughout the year in Russia's northern waterways. C) Increases in rainfall across the fertile regions of western Russia. D) Thawing of Siberian permafrost may cause mud flows and erosion. E) Rising sea levels along the Black and Baltic Seas.
What is turn impedance?
What will be an ideal response?
"Glaciers have no defined cleavage planes, but instead flow plastically." Evaluate this statement
A) This statement is true, but it only applies to the upper part of a glacier. B) This statement is false. Ice has cleavage similar to the mineral mica, and ice behaves like mica would under the same pressure. C) This statement is partially true. The flow of glaciers is very slow and more similar to gravel than to plastic. D) This statement is false. Glaciers do flow plastically, but also have well-defined cleavage planes similar to mica.
Hemoglobin is an example of which of the following?
A) an allosteric protein B) a conjugated protein C) both a and b D) neither a nor b