What is a void? 1 an area in space where matter is densely concentrated.

2 an area in space with little or no matter.

3 an area in space that contains a solar system.

4 an area in space that contains a black hole.

WILL MARK BRAINLIST IF CORRECT!!!

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

What is the relationship between absorbance of light and the rate of photosynthesis?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils