Today, we are able to use nuclear fusion to
A) power a hydrogen bomb.
B) generate electricity efficiently.
C) produce hydrogen for fuel cell cars.
D) power jets and ships.
A
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Sometimes an isolated block of ice, perhaps more than a kilometer across, persists in a ground moraine, an outwash plain, or valley floor after a glacier retreats. Perhaps 20 to 30 years are required for it to melt. In the interim, material continues to accumulate around the melting ice block. When the block finally melts, it leaves behind a steep-sided hole. Such a feature then frequently fills with water. This is called a kettle. Locate several named kettles that are ponds or lakes on this map and identify their general location:
A sinuously curving, narrow ridge of coarse sand and gravel is called an esker. Eskers form along the channel of a meltwater stream that flows beneath a glacier, in an ice tunnel, or between ice walls beneath the glacier. As a glacier retreats, the steep-sided esker is left behind in a pattern roughly parallel to the path of the glacier. What will be an ideal response?
Maritime polar (mP) air masses have their greatest influence in the eastern United States
Indicate whether the statement is true or false
Where would you find a kelp forest?
A) in a silty coastal area B) along a continental shelf C) in an estuary D) in a salt marsh E) in a coral reef
Most of the excessive carbon dioxide that is expected to cause global warming is generated by green plants.
Answer the following statement true (T) or false (F)