A spacecraft stationed near an asteroid so that its tiny mass can slowly pull the asteroid off its trajectory is known as a(n) _______________
Fill in the blank with correct word.
ANSWER: gravity tractor?
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According to environmental scientists, what are the desired criteria for an energy source in deciding which one to use?
A. High or medium net energy yield with low environmental impacts B. Low or negative net energy yield with low environmental impacts C. High or medium net energy yield with high environmental impacts D. Low or negative net energy yield with high environmental impacts
The state of Uttar Pradesh is dominated by which language?
A) Uttar Pradeshi B) Hindi C) Bengali D) Gujarati E) Tamil
A stream erodes the land as it flows to the sea. What landforms are likely to develop where the land is steep?
A. V-shaped valleys B. deltas C. meanders D. U-shaped valleys
This figure shows a northwest-southeast line of islands and seamounts near Hawaii. If location 3 has the oldest rocks and Hawaii (1) has the youngest rocks, which way is the plate moving with respect to the hot spot?
A. northwest and southeast B. northwest C. southeast D. It is not moving in a consistent direction.