Though they are called ________, these objects are not really empty space but very, very dense objects, so dense that their gravity pulls nearby material irresistibly in toward them, even light. Some of this material is altered on its way in to this death spiral — and it gives off X-rays in two jets.
A) dark matter
B) degenerate matter
C) dark energy
D) black holes
Ans: D) black holes
Environmental & Atmospheric Sciences
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The most prominent feature on the ocean floor are the ________.
A) deep-ocean trenches. B) oceanic ridges. C) seamounts. D) lava plateaus.
Environmental & Atmospheric Sciences
Why does Central Asia have such large lakes, and why are many of these lakes so severely threatened?
What will be an ideal response?
Environmental & Atmospheric Sciences
A cT air mass is:
A) warm and humid. B) cold and dry. C) cold and humid. D) warm and dry.
Environmental & Atmospheric Sciences
Suppose it was discovered that the bleach that is commonly used for laundry was carcinogenic. Referring to the policy life cycle, describe a predictable course of events until the problem is brought under control
What will be an ideal response?
Environmental & Atmospheric Sciences