Can you help me please with my Geology HW, 1. The planet Mercury absorbs most of

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Can you help me please with my Geology HW,

1. The planet Mercury absorbs most of the sunlight that strikes its surface. Why is so little reflected back to outer space?

d)Mercury has a great deal of frozen methane on its surface.

2. List three economic materials that can be profitably extracted from placer deposits.

a)Diamonds, iron, and quartz

b)Sand, gravel, and silt

c)Granite, basalt, and gabbro

d)Gold, platinum, and tin

3. Because of Pluto's inclined orbital plane, it appears to cross paths with Neptune and will occasionally be closer to the sun than Neptune.

a)True

b)False

4. When considering hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as gold or silver are common in ________.

a)rocks that form in high-pressure subduction zones

b)rocks of a contact-metamorphic zone that formed around a shallow granite pluton

c)pyroclastic materials erupted from a stratovolcano

d)impact structures from meteorites

a)Mercury has little or no atmosphere. b)The planet is covered by a thick haze. c)The surface of Mercury has not been disturbed by meteorite impacts.

d)Mercury has a great deal of frozen methane on its surface.

2. List three economic materials that can be profitably extracted from placer deposits.

a)Diamonds, iron, and quartz

b)Sand, gravel, and silt

c)Granite, basalt, and gabbro

d)Gold, platinum, and tin

3. Because of Pluto's inclined orbital plane, it appears to cross paths with Neptune and will occasionally be closer to the sun than Neptune.

a)True

b)False

4. When considering hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as gold or silver are common in ________.

a)rocks that form in high-pressure subduction zones

b)rocks of a contact-metamorphic zone that formed around a shallow granite pluton

c)pyroclastic materials erupted from a stratovolcano

d)impact structures from meteorites

Explanation / Answer

1) a

mercury has little or no atmosphere, so that is why it has low albedo. The albedo of Mercy is around 10% only

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