Answer the following question given this paragraph: The majority of solids are crystalline in nature. A crystal is a substance in which the particles are arranged in an orderly, repeating, three-dimensional pattern. Particles of a solid crystal may be ions, atoms, or molecules, depending on the type of substance. The three-dimensional arrangement of a solid crystal is referred to as the crystal lattice . Different arrangements of the particles within a crystal cause them to adopt several different shapes. Q: The majority of solids are what in nature? Choices: - gases - complex - liquids - crystalline A:
crystalline
(Question)
Answer the following question given this paragraph: Much of the iron produced is refined and converted into steel. Steel is made from iron by removing impurities and adding substances such as manganese, chromium, nickel, tungsten, molybdenum, and vanadium to produce alloys with properties that make the material suitable for specific uses. Most steels also contain small but definite percentages of carbon (0.04%2.5%). However, a large part of the carbon contained in iron must be removed in the manufacture of steel; otherwise, the excess carbon would make the iron brittle. Q: Much of the iron produced is refined and converted into what? Choices: - plastic - wood - sugar - steel A:
(Answer)
steel
Ques: Answer the following question given this paragraph: The blades of simple leaves are not divided. This provides the maximum surface area for collecting sunlight. Q: What is the limiting factor for bacteria in a dish? Choices: - density - speed - material - space A:
Ans: space
(Q).
Answer the following question given this paragraph: The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in water in all proportions. In a solution, the hydroxyl groups of alcohol molecules and the water molecules form hydrogen bonds with each other, resulting in complete miscibility. However, as the length of the carbon chain increases, the solubility decreases. The solubility of 1-butanol is 7.4 g per 100 g of water, while that of 1-pentanol is 2.7 g per 100 g water, and 1-octanol is 0.06 g per 100 g water. The carbon chain portion of the larger alcohol molecule is nonpolar and leads to the decreased solubility of the overall compound. Q: The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in? Choices: - gasoline - oil - argon - water A:
(A).
water
Ques:Answer the following question given this paragraph: Density is mass per unit volume. Density is a measure of how closely molecules are packed together. The closer together they are, the greater the density. Since air is a gas, the molecules can pack tightly or spread out. Q: What is the measure of how closely molecules are packed together? Choices: - length - volume - frequency - density A:

Ans:density
Answer the following question given this paragraph: Scavengers are decomposers that consume the soft tissues of dead animals. Examples of scavengers include hyenas and cockroaches. Q: Hyenas and cockroaches are examples of what decomposers that consume the soft tissues of dead animals? Choices: - parasites - foragers - predators - scavengers A:
scavengers