Researchers have drilled all the way to the mantle
a. True
b. False
False
You might also like to view...
What is the approximate mass of a carbon atom in atomic mass units (amu)? How about a carbon dioxide molecule?
A. A carbon atom has a mass of about 12 amu. Carbon dioxide would then have a mass of 44 amu. B. A carbon atom has a mass of about 12 amu. Carbon dioxide would then have a mass of 28 amu. C. A carbon atom has a mass of about 6 amu. Carbon dioxide would then have a mass of 22 amu. D. A carbon atom has a mass of about 6 amu. Carbon dioxide would then have a mass of 32 amu.
Some biodiversity experts advise us to focus our efforts on
a. slowing high rates of extinction in biodiversity hotspots b. slowing extinction in temperature deciduous forests c. saving single important species d. saving the polar bear which is the most endangered of all creatures e. saving fish populations because of their importance as a food source for humans
Hail is most commonly associated with
cirrostratus cumulonimbus altostratus cirrus
Which of the following is the most extensive type of subsistence agriculture?
A. rice farming B. nomadic herding C. shifting cultivation D. urban subsistence farming