Riding a bike does not cause pollution, and bikes are good for exercise and produce no pollution. Given these facts, what can you ride to get good exercise and avoid producing harmful gases among the following options: - cows - bike - stairmaster - cycles - bus - trolley - Lift - goats
bike
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Asandbar is formed by water moving sediment downstream, and some sediment comes from natural erosion. Given these facts, a sandbar is formed by among the following options: - loose soil - magma eruptions - wind currents - near the shoreline - seismic activity - natural erosion - flooding - Physical weathering
natural erosion
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If a living thing becomes too cold then that living thing will die, and hypothermia, a drop in the body's normal core temperature, can be caused by overexposure to cold. Given these facts, which of the following can cause a living thing to die among the following options: - Sleep - Hypothermia - viruses - dry conditions - Homeostasis - hyperthyroidism - Hydration - Pesticides
Hypothermia
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Lipids may consist of fatty acids alone, or they may contain other molecules as well, and fatty acids are the building blocks of lipids. Given these facts, what of lipids may contain other molecules as well among the following options: - empty spaces - big spaces - building blocks - small parts - solid, liquid, gas - Organic compounds - layers of fat - bioaerosols
building blocks
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