Which statements describe processes involved in the accretion of planetesimals and protoplanets? Check all tha apply. Both involve the melting of solid materials in the nebula. Both involve the formation of solid particles from nebular materials. Both involve the work of the gravitational push on nebular materials. Both involve the trapping of gases and the clumping of masses of matter. Both involve the growing of gas grains with the addition of atoms and molecules.​

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which of the following forest management practices is best for reestablishing areas of forest?

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter