What can run but never walks, has a mouth but never talks, has a head but never weeps, and has a bed but never sleeps. DO NOT LOOK IT UP

If a volcano’s magma is high in silica, the volcano will probably a. erupt quietly. b. remain dormant. c. erupt explosively. d. produce dark-colored lava.

Countries trade with each other because resources are not evenly distributed across the globe. true or false

High human population have had a negative effect on what issue? a. demand for consumer goods b. ability to staff armies c. business profits d. biodiversity