Become the most important source of environmental change on earth? select one:
a. climateb. energyc. human activityd. conservation biology

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Greenthe fossil record is the history of life recorded byhuman observationgod. climatologists. remains of the past.