Answer the following question given this paragraph: Q: Ammonia, urea, and uric acid are examples of what kind of waste? Choices: - carbonous - sulphurous - oxygenous - nitrogenous A:
nitrogenous
(Question)
Answer the following question given this paragraph: Mole-mole calculations are not the only type of calculations that can be performed using balanced chemical equations. Recall that the molar mass can be determined from a chemical formula and used as a conversion factor. We can add that conversion factor as another step in a calculation to make a molemass calculation, where we start with a given number of moles of a substance and calculate the mass of another substance involved in the chemical equation, or vice versa. For example, suppose we have the balanced chemical equation. Q: What effect, related to weather forecasting, occurs not only for sound but for any wave when there is relative motion between the observer and the source? Choices: - pulse - echo - precipitation - doppler A:
(Answer)
doppler
Ques: Answer the following question given this paragraph: Fossils are the preserved remains or traces of organisms that lived long ago. They form mainly when minerals in water turn remains to stone. Fossils can be dated using methods such as carbon-14 dating or their positions in rock layers. Q: What term is defined as the preserved remains or traces of organisms that lived during earlier ages? Choices: - bones - waste - deposits - fossils A:
Ans: fossils
(Q).
Answer the following question given this paragraph: Minerals form as magma or lava cools. Q: What is lava called before it reaches the surface of the earth? Choices: - crust - pyrite - rock - magma A:
(A).
magma
Ques:Answer the following question given this paragraph: John Romanes, modified by CK-12 Foundation. Wings of bats and birds are analogous structures . Public Domain. Q: Due to similar function, the wings of bats and birds are referred to as what type of structures? Choices: - symmetrical structures - matching structures - Identical structures - analogous structures A:

Ans:analogous structures
Answer the following question given this paragraph: Because isomers are different compounds, they have different properties. Generally, branched-chain isomers have lower boiling and melting points than straight-chain isomers. For example, the boiling and melting points of iso -butane are -12 C and -160 C, respectively, compared with 0 C and -138 C for n -butane. The more branching there is, the lower the boiling and melting points are. Q: Which type of isomers generally have lower boiling and melting points than straight-chain isomers? Choices: - straight-chain isomers - branched-looping isomers - branched - solar isomers - branched-chain isomers A:
branched-chain isomers