Which best explains how the collisions of materials in space contribute to the formation of layers in protoplanets? The materials undergo decay when they collide, which results in the heating and subsequent melting and rising of materials. The collisions release heat, which results in the heating and subsequent melting, sinking, and rising of materials. The materials undergo decay when they collide, which results in the cooling and subsequent hardening and sinking of materials. The collisions absorb heat, which results in the cooling and subsequent hardening and rising of materials.

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?