Answer the following question given this paragraph: Steel is an example of an alloy. An alloy is a mixture of a metal with one or more other elements. The other elements may be metals, nonmetals, or both. An alloy is a solid solution. It is formed by melting a metal and dissolving the other elements in it. The molten solution is then allowed to cool and harden. Several other examples of alloys and their uses are shown in Figure below . You can learn about an amazing alloy called memory wire at the URL below. If you have braces on your teeth, you may even have this alloy in your mouth!. Q: A mixture of a metal with one or more other elements is called? Choices: - a carbon - a hydrogen - a cobalt - an alloy A:
an alloy
(Question)
Answer the following question given this paragraph: isothermal expansion is a process occurring without a change in temperature. Q: Isothermal expansion is a process occurring without a change in? Choices: - weight - variation - precipitation - temperature A:
(Answer)
temperature
Ques: Answer the following question given this paragraph: Nuclear fusion is the opposite of nuclear fission. In fusion, two or more small nuclei combine to form a single, larger nucleus. An example is shown in Figure below . In this example, two hydrogen nuclei fuse to form a helium nucleus. A neutron and a great deal of energy are also released. In fact, fusion releases even more energy than fission does. Q: What is the opposite of nuclear fusion? Choices: - Solar Power - energy fission - might fission - nuclear fission A:
Ans: nuclear fission
(Q).
Answer the following question given this paragraph: A trophic level is a feeding position in a food chain or food web. Most food chains and webs have a maximum of four trophic levels. There is less energy and biomass at higher trophic levels. Q: Most food chains and webs have a maximum of how many trophic levels? Choices: - 3 - 10 - 6 - 4 A:
(A).
4
Ques:Answer the following question given this paragraph: Like Earth, the Moon has a distinct crust, mantle, and core. The crust is composed of igneous rock. This rock is rich in the elements oxygen, silicon, magnesium, and aluminum. On the near side, the Moon's crust is about 30 kilometers thick. On the far side, the crust is about 100 kilometers thick. The mantle is made of rock like Earth's upper mantle. The Moon has a small metallic core, perhaps 300 to 500 kilometers in diameter. The composition of the core is probably mostly iron with some sulfur and nickel. We learned this both from the rock samples gathered by astronauts and from spacecraft sent to the Moon. Q: What is the earths crust composed of? Choices: - sedimentary rock - bicellular rock - metamorphic rock - igneuos rock A:

Ans:igneuos rock
Answer the following question given this paragraph: Waves are characterized by their ability to constructively and destructively interfere . Light waves which interfere with themselves after interaction with a small aperture or target are said to diffract . Q: Light waves which interfere with themselves after interaction with a small aperture or target are said to what? Choices: - refract - adduce - reflect - diffract A:
diffract