The residual polar caps on Mars are made of
A) carbon dioxide ice
B) methane ice
C) water ice
D) a uniform mixture of water and carbon dioxide ices
C
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the electric force on the proton
A. The vector points in the +x direction. B. The vector points in the -x direction. C. The vector points in the +y direction. D. The vector points in the -y direction. E. The vector points in the +z direction. F. The vector points in the -z direction. T. The vector is zero.
Which planet's major moons were named after literary characters?
a. Jupiter b. Saturn c. Uranus d. Neptune
Given the correct quantity, what are three essential components for complete combustion?
As rock is weathered it breaks down and erodes. Sedimentation begins where erosion stops. Erosion is
A) disintegration and fragmentation of rock into smaller pieces. B) a chemical process. C) decomposition and alteration of rock material. D) transportation of rock particles via water wind or ice.