Answer the following question given this paragraph: Some nonmetals are very reactive, whereas others are not reactive at all. It depends on the number of electrons in their outer energy level. Q: The number of electrons in the outer energy level determines what property of nonmetals? Choices: - density - permeability - vibration - reactivity A:
reactivity
Answer the following question given this paragraph: Monarch butterflies gather in large groups as they migrate 2,500 miles south each fall. They return to the north in the spring. This migration is a cycle that repeats every year. Q: What do we call the seasonal movement of animals? Choices: - population - trade - immigration - migration A:
migration
Q: Answer the following question given this paragraph: One of the first uses of rockets in space was to launch satellites. A satellite is an object that orbits a larger object. An orbit is a circular or elliptical path around an object. Natural objects in orbit are called natural satellites. The Moon is a natural satellite. Human-made objects in orbit are called artificial satellites. There are more and more artificial satellites orbiting Earth all the time. They all get into space using some sort of rocket. Q: What is an object that orbits a larger object called? Choices: - asteroid - meteorite - comet - satellite A:
A: satellite
Question: Answer the following question given this paragraph: Tropical wet climates occur at or very near the Equator. They have high rainfall year round. Tropical rainforests ( FIgure below ) grow in this type of climate. Q: Tropical rainforests are an example of a climate that occurs near what? Choices: - poles - deserts - tundras - equator A:
Answer: equator
*Question*
Answer the following question given this paragraph: Valence electrons of both atoms are always involved when those two atoms come together to form a chemical bond. Chemical bonds are the basis for how elements combine with one another to form compounds. When these chemical bonds form, atoms of some elements have a greater ability to attract the valence electrons involved in the bond than other elements. Electronegativity is a measure of the ability of an atom to attract shared electrons when the atom is part of a compound. Electronegativity differs from electron affinity because electron affinity is a measure of the actual energy released when an atom gains an electron. In contrast, electronegativity is a relative scale, so it is not measured in units of energy. All elements are compared to one another, and the most electronegative element, fluorine, is assigned an electronegativity value of 3.98. Fluorine attracts shared electrons better than any other element. Figure below shows the electronegativity values of most elements. Q: What does fluorine attract better than any other element? Choices: - ionic bonds - electron shells - magnets - shared electrons A:
**Answer**
shared electrons
(Q).
Answer the following question given this paragraph: Body waves travel through the body of a planet. Surface waves travel along the surface. Q: What type of waves travel through the body of a planet? Choices: - vacuum waves - gas waves - energy waves - body waves A:
(A).
body waves