With the understanding of differentiation, which layer of Earth would be the densest?
a. lithosphere
b. core
c. crust
d. hydrosphere
e. mantle
b
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Radiant energy from the Sun is composed of shorter wavelengths than radiation from the Earth because the Sun
A) has much more thermal energy. B) has a higher temperature than the Earth. C) is an energy source while the Earth is primarily an energy receiver. D) none of the above
The linear momentum of an object can be determined by taking the product of the mass and the
a. acceleration of the object. b. velocity of the object. c. distance the object moves. d. displacement of the object.
If the half-life of a material is 45 years, how much of it will be left after 100 years?
A) more than 1/2 B) less than 1/2 but more than 1/4 C) more than 1/4 but less than 1/2 D) less than 1/4 but more than 1/8 E) less than 1/8
Chromatic aberration occurs because of
A) polarization. B) spherical surfaces. C) dispersion. D) internal reflection. E) astigmatism.