Which items describe possible solutions to today's environmental issues?
increased use of fossil fuels
increased use of geothermal energy
rain forest preservation
recycling
sustainable development
underpopulation

Which of the following insects is a decomposer? a. mosquito. b. caterpillar. c. beetle. d. none of the above.

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire

Which of the following can scientists estimate geologic time? a.observing rock sequences b.radiometric dating c.comparing fossils d.all of these