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
You don't need to post twice. I answered the best I can above. Be patient. Tutors are volunteers and not glued to this screen. Someone will get to you when possible. Sometimes questions don't receive an answer because no tutor is qualified to answer, but we answer those we can.
Well, it's a year later and nobody did soooo :/
@reed
I know right, another year later no ones answered.
Stop being jerks... Grow up and get a life.....jeez.....
@anonymous I know right LMFAOO
here are the answers for the first few!
1. C
2. D
3. A
5. To determine which of the nonmetallic mineral resources is used both as a building material and as an industrial mineral, we can analyze the options provided:
a. Sulfur: Sulfur is primarily used in the production of sulfuric acid and fertilizers. It is not commonly used as a building material.
b. Limestone: Limestone is widely used as a building material due to its durability and versatility. However, it is not generally considered an industrial mineral.
c. Graphite: Graphite is the correct answer. It is commonly used as a building material, especially in the production of graphite blocks and carbon brushes. Additionally, it is extensively used in various industrial applications including lubricants, batteries, and electrical components.
d. Corundum: Corundum is a mineral commonly used for its hardness and abrasion resistance. However, it is not typically used as a building material.
Therefore, the correct answer is "graphite."
6. To identify one of the drawbacks to the extensive use of solar energy, we can analyze the options provided:
a. It is nonrenewable: This option is incorrect as solar energy is classified as a renewable energy source since it is derived from sunlight.
b. Necessary equipment and installation are expensive: This option is correct. The initial cost of installing solar panels and related equipment can be quite high, which can be a drawback for widespread adoption.
c. It is available only at night: This option is incorrect as solar energy is harnessed from sunlight during the day.
d. Its use produces pollution: This option is also incorrect as solar energy is a clean energy source that does not produce pollution during operation.
Therefore, the correct answer is "Necessary equipment and installation are expensive."
7. To understand how nuclear fission produces energy, we can look at the options provided:
a. Moving water turns turbines to produce electricity: This option describes hydroelectric power generation, not nuclear fission.
b. A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy: This option is correct. Nuclear fission involves splitting of uranium or plutonium nuclei, which releases a significant amount of heat. This heat is then used to produce steam, which drives turbines connected to generators, ultimately producing electricity.
c. An uncontrolled nuclear reaction produces heat, driving steam turbines to produce energy: This option is incorrect as an uncontrolled nuclear reaction would result in a nuclear meltdown or explosion, not a controlled release of energy.
d. Carbon atoms are bombarded by neutrons: This option describes nuclear fusion, not nuclear fission.
Therefore, the correct answer is "A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy."
8. To determine how hydroelectric power is produced, we can analyze the options provided:
a. Falling water that turns a turbine: This option is correct. Hydroelectric power is generated by damming or redirecting flowing water, which then falls from a height, turning turbines. The rotational motion of the turbines is converted into electricity using generators.
b. Tides that pour through a dam barrier: This process describes tidal energy generation, not hydroelectric power.
c. Hot water that comes from deep underground: This option describes geothermal energy generation, not hydroelectric power.
d. Electric current that flows across a dam: This option is incorrect as hydroelectric power is generated by the movement of water, not electric current.
Therefore, the correct answer is "Falling water that turns a turbine."