You are presented with the question "What generally has a negative impact on the environment?" and the following answer choices: - mold - schools - deserts - dumps - drought - disease - recycling centers - thrift stores Now knowing that landfills have a negative impact on the environment and an example is a dump or landfill, choose the best answer.
dumps

You are presented with the question "The vanes rotating in an electric fan causes" and the following answer choices: - sound - heat - wind - current - motion - speed - Lift - vibration Now knowing that the vanes rotating in an electric fan causes air to move and all wind is simply air moving, choose the best answer.
wind

You are presented with the question "What causes good visibility?" and the following answer choices: - permineralization - focusing a lens - high pressure systems - flashlights - peachleaf willow - the Great Barrier Reef - an electron microscope - windpower operated machines Now knowing that high pressure systems cause clear weather and weather Clear weather usually means good visibility, choose the best answer.
high pressure systems