Identify and describe the three principal sources of water pollution
What will be an ideal response?
Answer: Industry, sewage, and agriculture with description of each.
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The conservation of matter principle is that matter
A. can neither be created nor destroyed. B. must be used carefully or Earth will eventually run out. C. cannot be created, destroyed, nor changed in form. D. is composed of atoms and molecules.
What is deforestation, and what factors are primarily responsible for the deforestation of the tropics?
What will be an ideal response?
When ice melts into liquid water, a(n) _____________________ change has occurred.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a correct approximation of average sea-level atmospheric pressure?
A) 1013.2 millibars B) 31 inches of mercury C) 99 kilopascals D) 20 pounds per square inch