Answer the following question given this paragraph: Increasing the temperature increases the average kinetic energy of the N2molecules. Q: Increasing the temperature of n2 molecules increases what energy of motion? Choices: - compression energy - residual energy - emotional energy - kinetic energy A:
kinetic energy
Answer the following question given this paragraph: Sometimes large numbers of species go extinct in a short amount of time. This is a mass extinction . The causes of different mass extinctions are different: collisions with comets or asteroids, massive volcanic eruptions, or rapidly changing climate are all possible causes of some of these disasters ( Figure below ). Q: What term is used to describe large numbers of species that go extinct in a short amount of time? Choices: - formation extinction - organic extinction - species extinction - mass extinction A:
mass extinction
Q: Answer the following question given this paragraph: Aldehydes and ketones can work weak hydrogen bonds with water through the carbonyl oxygen atom. The lower members of both series (3 carbons or fewer) are soluble in water in all proportions. As the length of the carbon chain increases, water solubility decreases. Similar to ethers, neither aldehydes nor ketones can hydrogen bond with themselves. As a result, their boiling points are generally lower than those of alcohols. Unlike alkanes however, aldehydes and ketones are polar molecules due to the more electronegative oxygen atom. The dipole-dipole interactions are stronger than the dispersion forces present in alkanes. The boiling points of aldehydes and ketones are intermediate between those of alkanes and alcohols. For example, the boiling point of ethane is -89C, ethanal is 20C, and ethanol is 78C. Q: Aldehydes and ketones can work weak hydrogen bonds with water through what atom? Choices: - basalt oxygen atom - pyridinium oxygen atom - carbon carbon atom - carbonyl oxygen atom A:
A: carbonyl oxygen atom
Question: Answer the following question given this paragraph: A human sperm is a tiny cell with a tail. A human egg is much larger. Both cells are mature haploid gametes that are capable of fertilization. What process is shown in this photograph?. Q: Which is larger: the human sperm or the human egg? Choices: - same size - zygote - human sperm - human egg A:
Answer: human egg
*Question*
Answer the following question given this paragraph: Q: How do most growing plant cells expand? Choices: - through germination - through cell respiration - through photosynthesis - through water uptake A:
**Answer**
through water uptake
(Question)
Answer the following question given this paragraph: Q: Many species secrete a hard external skeleton of what? Choices: - sodium bicarbonate - hydrogen carbonate - carbon dioxide - calcium carbonate A:
(Answer)
calcium carbonate