Answer the following question given this paragraph: Water and chemical elements that organisms need keep recycling through biogeochemical cycles. These cycles include biotic and abiotic components of ecosystems. Q: Water and chemical elements that organisms need keep recycling through biogeochemical what? Choices: - mutations - levels - effects - cycles A:
cycles
(Question)
Answer the following question given this paragraph: When wood burns, it changes to ashes, carbon dioxide, water vapor, and other gases. You can see ashes in the wood fire pictured here. The gases are invisible. Q: What is the primary gas produced from burning of wood? Choices: - liquid dioxide - Hydrogen Dioxide - toxic dioxide - carbon dioxide A:
(Answer)
carbon dioxide
Ques: Answer the following question given this paragraph: Emigration is the movement of individuals out of a population. This decreases the population size and growth rate. Q: What is the term for the movement of individuals out of a population? Choices: - succession - colonization - immigration - emigration A:
Ans: emigration
(Q).
Answer the following question given this paragraph: During transcription, a copy of mRNA is made that is complementary to a strand of DNA. In eukaryotes, mRNA may be modified before it leaves the nucleus. Q: In eukaryotes, mrna may be modified before leaving what? Choices: - ribosome - mitochondria - epidermis - nucleus A:
(A).
nucleus
Ques:Answer the following question given this paragraph: Linear or tangential acceleration refers to changes in the magnitude of velocity but not its direction. We know from Uniform Circular Motion and Gravitation that in circular motion centripetal acceleration, a c , refers to changes in the direction of the velocity but not its magnitude. An object undergoing circular motion experiences centripetal acceleration, as seen in Figure 10.5. Thus, a t and a c are perpendicular and independent of one another. Tangential acceleration a t is directly related to the angular acceleration. Q: An object undergoing circular motion experiences centripetal what? Choices: - velocity - vibration - transmission - acceleration A:

Ans:acceleration
Answer the following question given this paragraph: In radio broadcasts, sounds are encoded in radio waves by changing either the amplitude (AM) or frequency (FM) of the waves. The encoded waves are broadcast from a tower and changed back to sounds by radio receivers. Q: What changes encoded waves which are being broadcast into sounds? Choices: - transmitters - amplifiers - band receivers - radio receivers A:
radio receivers