The United States produced 16 quadrillion BTUs of which type of energy in 2017?
a) Nuclear energy
b) Natural gas
c) Hydropower
d) Coal
Ans: d) Coal
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Because of other lifestyle factors, the rise in obesity associated with fast and processed foods that is seen in the USA is not noticeable elsewhere in the world
Indicate whether this statement is true or false
Mafic magma typically contains:
a) 25% silica b) 50% silica c) 75% silica d) No silica at all e) Some silica but there is insufficient data regarding this
What is true of the backshore?
a. It is a relatively active zone b. It extends to the low-tide mark. c. It can include dunes and grasses. d. It is the shoreward limit of wave action. e. It marks the normal limit of sand deposition.
As sea ice melts,
A) the albedo increases. B) the albedo decreases. C) the albedo remains constant but land area is exposed.