How did the increasing amounts of oxygen in earth atmosphere allow organisms to live on land

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water

Atopography map is used to study changes in vegetation associated with different elevations. which individual most likely used them for this purpose?

What is an example of how the use of resources have changed? a. car companies have developed hybrid cars. b. coal is used to make electricityc. cars still largely rely on oild. people are recycling less