There are 9 nine planets in our solar system true or false

The graph represents the gravitational attraction between two equal masses vs. their distance apart, which statement best describes the information presented by the graph? a) distance is only a factor in space, not on earth. b) gravitational attraction is directly proportional to distance. c) gravitational attraction is inversely proportional to distance. d) gravitational attraction is not related to the distance between objects.

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !