Answer the following question given this paragraph: As shown in Figure above , each state of matter looks quite different at the molecular level. In the case of liquids and solids, the distances between particles are negligible relative to the size of each particle; they are essentially in direct contact with one another. In liquids, particles are free to move and exchange neighbors, resulting in the properties of a fluid. In solids, they are rigidly fixed in space and held tightly to neighboring particles. Q: In what state of matter are particles rigidly fixed in space and held tightly to neighboring particles? Choices: - Gases - liquids - energies - solids A:
solids
(Question)
Answer the following question given this paragraph: Greenhouse gas levels in the atmosphere are increasing. Global temperatures are increasing. Q: What type of gas levels in the atmosphere are increasing? Choices: - carbonate gas - helium gas - hydrogen gas - greenhouse gas A:
(Answer)
greenhouse gas
Ques: Answer the following question given this paragraph: Grain boundaries. As a polycrystalline material solidifies, grains with irregular shapes form. The interfaces between grains constitute grain boundaries. (Squares represent unit cells within grains. Q: As a polycrystalline material solidifies, grains with irregular shapes form. the interfaces between grains constitute grain what? Choices: - waves - patterns - obstacles - boundaries A:
Ans: boundaries
(Q).
Answer the following question given this paragraph: Tropical climates are found around the Equator. As you'd expect, these climates have warm temperatures year round. The warm air rises at the Equator. As it rises, it cools, causing it to rain. Tropical climates may be very wet, or wet and dry. Q: What type of climates are found around the equator? Choices: - arid - tundras - arctics - tropical A:
(A).
tropical
Ques:Answer the following question given this paragraph: When stars fuse helium into larger atoms, they become red giants. Q: Red giants are stars that fuse what element into larger atoms? Choices: - carbon - hydrogen - oxygen - helium A:

Ans:helium
Ques: Answer the following question given this paragraph: Inorganic chemical compounds can be broadly classified into two groups: ionic compounds and molecular compounds. The structure of all ionic compounds is an extended three-dimensional array of alternating positive and negative ions. Since ionic compounds do not take the form of individual molecules, they are represented by empirical formulas. Now we will begin to examine the formulas and nomenclature of molecular compounds. Q: Inorganic chemical compounds can be broadly classified into two groups: ionic compounds and which other group? Choices: - cellular compounds - atomic compounds - electromagnetic compounds - molecular compounds A:
Ans:
molecular compounds