Which of the following is not a process that forms metallic ore?
placer deposits ***
fossil compaction
hydrothermal solutions
igneous processes
5. Which of the following nonmetallic mineral resources is used both as a building material and as an industrial mineral?
sulfur
limestone
graphite ***
corundum
6. What is one of the drawbacks to the extensive use of solar energy?
It is nonrenewable.
Necessary equipment and installation are expensive. ***
It is available only at night.
Its use produces pollution.
7. How does nuclear fission produce energy?
Moving water turns turbines to produce electricity.
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
An uncontrolled nuclear reaction produces heat, driving steam turbines to produce energy. ***
Carbon atoms are bombarded by neutrons.
8. Hydroelectric power is produced by ____.
falling water that turns a turbine ***
tides that pour through a dam barrier
hot water that comes from deep underground
electric current that flows across a dam
#5, I don't know. #7, wrong. All others seem correct.
#5 is actually Limestone #6 is right #7 and #8 I'm not sure
To determine the correct answer for question 4, you must understand the processes that form metallic ore. The options are:
1. Placer deposits
2. Fossil compaction
3. Hydrothermal solutions
4. Igneous processes
In order to identify the answer, we must know which of these processes is not involved in the formation of metallic ore.
1. Placer deposits are formed by the accumulation of heavy minerals, such as gold, in river beds and sediments through the process of erosion.
2. Fossil compaction does not directly form metallic ore. Fossil compaction refers to the process by which organic material, such as plants and animals, is compressed to form fossil fuels.
3. Hydrothermal solutions are involved in the formation of metallic ore. This process occurs when hot water rich in mineralized fluids moves through fractures in rocks, depositing minerals as the water cools.
4. Igneous processes can also contribute to the formation of metallic ore. Igneous processes involve the cooling and solidification of magma or lava, which can lead to the concentration of certain minerals.
Therefore, the correct answer is "fossil compaction" as it is not a process that forms metallic ore.
Moving on to question 5, we are asked to identify a nonmetallic mineral resource used both as a building material and as an industrial mineral. The options are:
1. Sulfur
2. Limestone
3. Graphite
4. Corundum
To find the correct answer, we need to determine which mineral resource fits the given criteria.
1. Sulfur is primarily used in the production of sulfuric acid and fertilizers, but it is not commonly used as a building material.
2. Limestone is indeed a widely used building material in the construction industry, but it is not typically used as an industrial mineral.
3. Graphite fits the criteria as it is used in the construction industry for various purposes, such as making steel and as a lubricant, in addition to its industrial applications.
4. Corundum is primarily used as an abrasive, refractory material, and in the manufacturing of gemstones, so it does not meet the criteria.
Therefore, the correct answer is "graphite" as it is both used as a building material and as an industrial mineral.
Moving on to question 6, we are asked to identify one of the drawbacks to the extensive use of solar energy. The options are:
1. It is nonrenewable.
2. Necessary equipment and installation are expensive.
3. It is available only at night.
4. Its use produces pollution.
To determine the correct answer, we must consider the disadvantages associated with solar energy.
1. Solar energy is, in fact, a renewable source of energy, so it does not fit the criteria.
2. Necessary equipment and installation for solar energy systems can be expensive, making it a valid drawback.
3. Solar energy is available during the day when sunlight is present, and not limited to nighttime.
4. Solar energy does not produce pollution during its use, making this option incorrect.
Hence, the correct answer is "Necessary equipment and installation are expensive" as this is one of the drawbacks to the extensive use of solar energy.
Finally, for question 7, we are asked to understand how nuclear fission produces energy. The options are:
1. Moving water turns turbines to produce electricity.
2. A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
3. An uncontrolled nuclear reaction produces heat, driving steam turbines to produce energy.
4. Carbon atoms are bombarded by neutrons.
To identify the correct answer, we must understand the process of nuclear fission.
1. Moving water and turbines are associated with hydroelectric power, not nuclear fission.
2. A controlled nuclear chain reaction, through the splitting of atomic nuclei, does produce heat that can be used to drive steam turbines and generate electricity. This is the correct answer.
3. An uncontrolled nuclear reaction, such as a nuclear meltdown or explosion, is highly dangerous and not a controlled way to produce energy.
4. Bombarding carbon atoms with neutrons does not produce nuclear fission.
Therefore, the correct answer is "A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy."
Finally, for question 8, we are asked about hydroelectric power. The correct answer is:
Hydroelectric power is produced by falling water that turns a turbine. This process involves using the kinetic energy of flowing water to spin a turbine, which then converts the mechanical energy into electrical energy using a generator. Other options mentioned, such as tides pouring through a dam barrier or hot water from underground, are not specific to hydroelectric power and refer to other forms of energy generation.