What do astronomers expect will be left at the center of our solar system once the Sun has gone through all its life stages?

A) a planet-sized diamond
B) a red giant
C) a black hole
D) a wormhole


A

Environmental & Atmospheric Sciences

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How does the hydrogen bonds of water influence the physical properties of the ocean?

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Between the earth's surface and the ionosphere,

A) a large voltage difference occurs only when thunderstorms are present. B) a large voltage difference always exists. C) a very small voltage difference usually exists. D) a very small voltage difference occurs only when thunderstorms are present.

Environmental & Atmospheric Sciences

Briefly discuss the pros and cons of hydropower

What will be an ideal response?

Environmental & Atmospheric Sciences

Carcinogens cause or promote ____.

A. genetic defects B. birth defects C. cancer D. immune system disorders E. allergic reactions

Environmental & Atmospheric Sciences