Sand dunes are formed by the wind transporting and depositing sand, and winds are caused by pressure differences. Given these facts, sand dunes can be formed by among the following options: - air mass over Earth's surface - movements in the earth's crust - The bending of a ray of light - Movement of an air mass - pressure differences. - Physical weathering - looseness of dirt or compost - remains of prehistoric life
pressure differences.
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Telephones are used for communication by two people by transmitting sound, and when a wave is audible, it is called a sound wave . Given these facts, telephones are used for communication by transmitting what among the following options: - encoded information - Electrical energy - music - chemical messengers - telephone messages - audible waves - pictures - electricity
audible waves
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Condensation is when change from a gas into a liquid by reducing heat energy, and all temperatures are measures of heat energy. Given these facts, what is when something changes from a gas into a liquid by reducing what is measured in temperature among the following options: - Water expanding - condensation - forces - movement - Evaporation - sweating - motion - boiling
condensation
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Heavy rains cause flooding, and floods are deadly, floods are devastating. Given these facts, heavy rain can cause that which is what among the following options: - Plant growth is reduced - Inches or fractions of inches. - forest is destroyed - dry and parched - droughtlike - looseness of dirt or compost - deadly and devastating - deadly but not deadly
deadly and devastating
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