5. Minerals are renewable resources. ( ) 6. From the expensive minerals diamond and benitoite. ( ) Choose the correct answer: 1. ........................ is essential characteristics of a mineral. a. Liquid b. Crystal structure c. Artificially manufactured d. Formed from organic processes 2. The types of minerals that form from magma and lava vary based on ............................ a. The materials in the magma b. The solar power c. Cooling rate d. a & c 3. ......................... is a mineral used to build bones and teeth. a. Uranium b. Gold c. Calcium d. Helium 4. ............................. is heavy metal formed with all other atoms other than hydrogen and helium also used in jewelry. ` a. Uranium b. Gold c. Calcium d. Sodium Give reasons for each of the: 1. It's hard to find the gold at the surface. ...................................................................................................................................... ...................................................................................................................................... 2. Mining is very dangerous work. ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... ......................................................................................................................................
Question
- Minerals are renewable resources. ( )
- From the expensive minerals diamond and benitoite. ( ) Choose the correct answer:
- ........................ is essential characteristics of a mineral. a. Liquid b. Crystal structure c. Artificially manufactured d. Formed from organic processes
- The types of minerals that form from magma and lava vary based on ............................ a. The materials in the magma b. The solar power c. Cooling rate d. a & c
- ......................... is a mineral used to build bones and teeth. a. Uranium b. Gold c. Calcium d. Helium
- ............................. is heavy metal formed with all other atoms other than hydrogen and helium also used in jewelry. ` a. Uranium b. Gold c. Calcium d. Sodium Give reasons for each of the:
- It's hard to find the gold at the surface. ...................................................................................................................................... ......................................................................................................................................
- Mining is very dangerous work. ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... ......................................................................................................................................
Solution
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The correct answer for the first question is b. Crystal structure. This is because a mineral is a naturally occurring inorganic solid that has a crystal structure and a defined chemical composition.
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The correct answer for the second question is d. a & c. The types of minerals that form from magma and lava vary based on the materials in the magma and the cooling rate.
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The correct answer for the third question is c. Calcium. Calcium is a mineral used to build bones and teeth.
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The correct answer for the fourth question is b. Gold. Gold is a heavy metal formed with all other atoms other than hydrogen and helium and is also used in jewelry.
Reasons:
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It's hard to find gold at the surface because it is usually found in low concentrations in rocks. Gold is also a dense element and tends to sink, so it's not often found near the surface. Over time, geological processes such as erosion and plate tectonics can bring gold-bearing rocks to the surface.
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Mining is very dangerous work because it involves working in confined spaces, often deep underground. Miners are at risk of cave-ins, explosions, and exposure to harmful dust and chemicals. The heavy machinery used in mining also poses a risk of injury.
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