What happened to atmospheric composition? Oxygen began leaking into the atmosphere.

Volcanic activity filled the air with carbon dioxide

Oxygen absorbed into the earth

Compare asexual reproduction to sexual reproduction

Microorganisms are involved in each of the following processes excepta. smog production. b. food production. c. infection. d. o2 production. e. decomposition of organic material.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.