What are the characteristics of the earth's orbit around the Sun and Earth's rotation on its axis?
What will be an ideal response?
Answer: Earth orbits the Sun once every 3651⁄4 days as if it were riding along a flat plane. This is called revolution. In addition to its revolution, Earth also undergoes a spinning motion called rotation. Rotation occurs every 24 hours (23 hours and 56 minutes, to be exact) around an imaginary line, called Earth's axis, connecting the North and South Poles. The axis is not perpendicular to the plane of the orbit of Earth around the Sun but is tilted 23.5° from it.
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The effect of humidity and high temperature on human comfort is given by the
A) heating degree-days. B) cooling degree-days. C) heat index. D) moisture index.
Animals that strain plankton and tiny organic food particles from the surrounding water are ________
a. producers b. detrital feeders c. suspension feeders d. predators
A good example of thermohaline circulation is found ________.
A. close to Antarctica B. in the Gulf of Mexico C. in the central South Pacific D. along the east coast of the United States E. in equatorial regions
Short-term changes in Pacific Ocean circulation are primarily responsible for climatic events associated with:
a. glaciation. b. global warming. c. El Niño. d. albedo.