What is Earth's greatest distance from the sun?

a. apogee
b. perigee
c. aphelion
d. perihelion
e. periapsis


c

Environmental & Atmospheric Sciences

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What are the required inputs for spatial interpolation?

What will be an ideal response?

Environmental & Atmospheric Sciences

Which type of analysis is performed by industrial ecologists when they examine a product from its beginning as a raw material until its disposal?

A. full-term analysis B. life-cycle analysis C. reverse-engineering analysis D. disposal-tracking analysis

Environmental & Atmospheric Sciences

To an ethologist, graffiti in an high-density urban area is least likely to be explained as a(n)

A) response to overcrowding. B) act of vandalism. C) expression of identity. D) claim to territory.

Environmental & Atmospheric Sciences

Why does magma viscosity vary with silica content?

A) There is no correlation between silica content and magma viscosity. B) Increasing silica content increases the amount of water a magma can dissolve and water decreases magma viscosity, so increasing silica content decreases magma viscosity. C) Increasing silica increases a tendency for silica bonds to link up in networks, acting like a polymerization of the magma. D) Increasing silica content lowers the melting temperature and since increasing the temperature of a magma decreases viscosity increasing silica content increases viscosity.

Environmental & Atmospheric Sciences