1 Meteorites that contain organic compounds have been found on Earth. Some scientists think the organic compounds in meteorites may have provided the elements needed for life on Earth. Which element forms the
backbone of organic compounds?
A carbon
B. nickel
Cphosphorus
D
sodium

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here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.