As elevation increases temperature decreases. at which elevation will sound travel fastest

How would doubling the made of an object change the objects potential energy

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?