A) stretch one side tighter B) only stretch one side C) stetch both sides the same
A) about 3.4 billion years B) about 6000 years C) about 4.5 billion years D) about 18-20 billion years
A) Cosmic - origin of time, space, and matter. B) Micro - variations within kinds C) Macro - changing from one kind to another. D) Chemical - the origin of higher elements from hydrogen.
A) a mass a few light years in diameter B) a mass the trillionth the diameter of a protron C) nothing
A) increase B) loose
A) away from the earth B) closer to the earth C) neither of these
A) speeding up B) staying the same C) slowing down
A) I don't know B) yes C) no
A) saltier B) less saltier C) neither |