Answer the following question given this paragraph: Every object has a center of gravity . The center of gravity is the point at which the entire weight of a body may be considered to be concentrated; if supported at this point, the body would remain in equilibrium in any position. For example, if we were discussing a 12-inch ruler, the center of gravity for the ruler would be at the center of the 6-inch line. You could put your finger directly under the 6-inch line to hold the ruler and it would not fall either left or right. If you placed your finger underneath any other place on the ruler, it would fall off to one side or the other. Q: What do you call the point at which the entire weight of a body may be considered to be concentrated? Choices: - center of earth - complex of gravity - direction of gravity - center of gravity A:
center of gravity
(Question)
Answer the following question given this paragraph: Q: What comes first in the life cycle of a plant? Choices: - pair - flower - garden - seed A:
(Answer)
seed
Ques: Answer the following question given this paragraph: Energy from the Sun has a wide range of wavelengths. The total range of energy is called the electromagnetic spectrum . You can see it in Figure below . Q: Energy from the sun has a wide range of wavelengths.what is the total range of energy called? Choices: - heat spectrum - light spectrum - thermal spectrum - electromagnetic spectrum A:
Ans: electromagnetic spectrum
(Q).
Answer the following question given this paragraph: Long-term or high-dose exposure to radiation can harm both living and nonliving things. Radiation knocks electrons out of atoms and changes them to ions. It also breaks bonds in DNA and other compounds in living things. One source of radiation that is especially dangerous to people is radon. Radon is a radioactive gas that forms in rocks underground. It can seep into basements and get trapped inside buildings. Then it may build up and become harmful to people who breathe it. Long-term exposure to radon can cause lung cancer. Q: This knocks electrons from atoms and turns them into ions? Choices: - convection - chemical reactions - evaporation - radiation A:
(A).
radiation
Ques:Answer the following question given this paragraph: Figure 7.14 Maxillary Bone The maxillary bone forms the upper jaw and supports the upper teeth. Each maxilla also forms the lateral floor of each orbit and the majority of the hard palate. Q: What bone forms the upper jaw and supports the upper teeth? Choices: - subaerial bone - orbital bone - tibular bone - maxillary bone A:

Ans:maxillary bone
Ques:Answer the following question given this paragraph: Food Chains and Food Webs A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another; the levels in the food chain are producers, primary consumers, higher-level consumers, and finally decomposers. These levels are used to describe ecosystem structure and dynamics. There is a single path through a food chain. Each organism in a food chain occupies a specific trophic level (energy level), its position in the food chain or food web. In many ecosystems, the base, or foundation, of the food chain consists of photosynthetic organisms (plants or phytoplankton), which are called producers. The organisms that consume the producers are herbivores: the primary consumers. Secondary consumers are usually carnivores that eat the primary consumers. Tertiary consumers are carnivores that eat other carnivores. Higher-level consumers feed on the next lower trophic levels, and so on, up to the organisms at the top of the food chain: the apex consumers. In the Lake Ontario food chain, shown in Figure 20.4, the Chinook salmon is the apex consumer at the top of this food chain. Q: Producers, primary consumers, higher-level consumers, and decomposers are levels in what? Choices: - food model - energy chain - food flowchart - food chain A:

Ans:
food chain