According to current estimates, the earth's internal temperature is:
a. at the melting point in the outer core
b. above the melting point in the outer core
c. below the melting point in the outer core
d. lower in the outer core than in the mantle
b
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If the earth's orbit around the Sun were more elliptical than now with the same inclination angle
A) the northern hemisphere would be warmer. B) the southern hemisphere would be about the same in yearly temperature. C) storms in both hemispheres would be stronger. D) there would be no change because the Sun's energy is constant.
Which of the following is a mineral?
a. Sugar b. Granite c. Ice d. Obsidian e. Bronze
Which of the following best matches the description?Process whereby plants convert inorganic materials into organic matter.
A. enzyme B. kinetic energy C. isotope D. potential energy E. base F. photosynthesis G. acid H. electron I. latent heat J. pH K. entropy L. nucleus M. respiration N. neutron O. proton P. ion Q. combustion
An example of a ria coast is ________.
A. southeast Alaska B. the mouth of the Mississippi River C. Delaware Bay D. the Gulf of Mexico E. San Francisco Bay