Which ones are all nonrenewable resources?
wind, natural gas, solar
coal, hydroelectric, solar
hydroelectric, biomass, solar
coal, nuclear, oil

Rue or false siblings look simila rbecause they each have some traits of their parents.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules