What effects do humans have on the environment through the modifications they make? select three options. deforestation
conservation of land
pollution of land and water
construction of new homes
excavation of mineral resources

If babies are consistently placed on their backs without any restrictions, what will happen to their development? a. they suffer from weakness in certain muscle groups. b. their ability to roll over, crawl, and eventually walk is hindered. c. they suffer brain damage from the pressure on the back of the head. d. they learn to roll over, crawl, and eventually walk on their own.

per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.

Stuart runs with his brother each morning, and they can only speak one or two words at a time between multiple deep breaths. which best describes their heart rates during this activity? low moderate vigorous dangerous