Which
black holes are
1) The gravitational attraction of black holes are so strong that not even
is the fastest known thing in the universe, can escape it.
thought to have formed when the universe first formed.
developed the Theory of
space-time.
is the curvature of

Plants in the tundra biomes have had to adapt to live long periods of time without a. cool temperatures b. sunlight c. oxygen d. water

How many inches of snow did any of you guys get last night?

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.