What primary factors determine the seasons on Earth?
What will be an ideal response?
The Earth's revolution around the sun; the Earth's rotation on its axis; the Earth's axial tilt; axial parallelism; and the Earth's sphericity.
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Which of the following statements is false?
A. The process of ocean acidification enabled life on land to evolve. B. CFCs are odorless and stable. C. CFCs are nonflammable, nontoxic, and noncorrosive. D. Ocean acidification is responsible for the breakdown of ozone to molecular oxygen. E. CFCs are cheap to produce.
Which group loved the Emperor Nero?
A) The people of Rome B) The Senate C) The Roman army D) None of the above
High tides are associated with the area between bulges
a. True b. False
Which of the following is not sited as a factor in helping to reduce air pollution?
A) Stricter air emission regulations. B) Increased use of coal as an energy source. C) Use of more alternative, clean energy sources such as wind and solar. D) Increased vehicle fuel-efficiency.