Burning fossil fuels increases the carbon in the atmosphere, and oil is one type of fossil fuel. Given these facts, burning what substances increases carbon in the atmosphere among the following options: - CO2 - oil - tar - gas - CFCs - Cars - coal - peat
oil
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Freezing means changing from a liquid into a solid by reducing heat energy, and liquid water holds a huge amount of heat energy and resists changes of state to solid or gas. Given these facts, what turns a liquid into a solid among the following options: - The bending of a ray of light - decreasing liquid - reducing heat energy - Warm air moving into cold air - movement of tectonic plates - keeping current temperature - adding more heat - evaporation
reducing heat energy
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Microscope is used to see small things by biologists by making them appear bigger, and biologists study living creatures. Given these facts, what makes living creatures appear bigger among the following options: - fur and fat - xrays - squids - microscopes - deuterostomes - hearing - screen - mutations
microscopes
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Uneven heating of the Earth 's surface cause wind, and wIND Wind is the movement of atmospheric air on a planet. Given these facts, uneven heating of Earth's surface causes the movement of what among the following options: - Earth's core - underground air - electromagnetic energy - atmospheric air - Earth's moon - Greenhouse gases - kinetic energy - an object
atmospheric air
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