Question

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

Answer 1

Rain Forest Preservation, Recycling, and Sustainable Development. Not 100% sure, but I'm counting on this, and it makes the most sense.

Answer 2

Rain forest preservation, and recyciling for sure. there might be others...