What explains how day and night occur in different parts of Earth? a. Earth rotates on its axis. b. Earth revolves around the sun. c. The sun rotates on its axis. d. The sun revolves around the galaxy.
Which statement is most likely true about the formation of granite? a. Granite results when molten magma is cooled. b. Granite is formed from other rocks subjected to heat and pressure. c. Granite is formed underwater in inland lakes. d. Granite results from long periods of weathering and erosion.
a. Granite results when molten magma is cooled.
Which of the following is not an inherited trait of humans? a. eye color b. hair color c. favorite food d. height
Bison are grazing animals. They travel across a prairie, eating grass. If there were too many bison in an area, there would probably be a. fewer predators of bison b. many other large grazing animals. c. tall shrubs and many trees d. less grass and more bare soil
An earthworm was placed on top of a thick layer of moist topsoil in a pan. The pan was placed in a room with the lights on. How did the earthworm most likely respond to these conditions? a. by burrowing under the soil b. by crawling around in the pan c. by staying where it was placed d. by trying to crawl out of the pan
Which of the following organisms have the greatest effect on an ecosystem because of the changes they make to their environment? a. bees building a hive in a hollow tree b. wasps building a nest in a leafy bush c. beavers building a dam across a stream d. fish digging a burrow on a river bottom
Freda always hangs her wet swimsuit outdoors after getting out of the swimming pool. Which of the following is least likely to affect the rate at which Freda’s swimsuit dries? a. the heat of the Sun b. the speed of the wind c. the temperature of the water in the pool d. the amount of water vapor in the air.
What is the main advantage of making a laptop computer light in weight? a. to make it easy to carry b. to keep it simple to build c. to make the screen easy to read d. to provide storage for an electrical cord
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What could be done to raise the pitch of the sound from a drum? a. tighten the rubber skin of the drum b. cover the drum with a blanket c. strike the drum harder d. use thicker rubber to make the drum skin