Answer: Generation of heat
Explanation: 1, 2 and 3 are wrong because traction actually increases, speed decreases and wear and tear is produced.
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Answer:
After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil, while plants become coal. Today, humans extract these resources through coal mining and the drilling of oil and gas wells on land and offshore.
Explanation:
ANSWER: sulfur, phosphorus, oxygen, nitrogen, carbon, and hydrogen.
Answer:
A
Explanation:
For the water cycle to work, water has to get from the Earth's surface back up into the skies so it can rain back down and ruin your parade or water your crops or yard. It is the invisible process of evaporation that changes liquid and frozen water into water-vapor gas, which then floats up into the skies to become clouds.
Chapter
7:
<span>
Chemical Formulas and
Chemical Compounds</span>