Q: All forms of energy can be interconverted. three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of what? Read this paragraph and choose the correct option from the provided answers: All forms of energy can be interconverted. Three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of heat and work. Choices: - temperature and work - humidity and work - cold and energy - heat and work A:
heat and work

Q: Hay fever is actually an allergy to what substance, vital to plant reproduction? Read this paragraph and choose the correct option from the provided answers: Did you ever hear of hay fever? It's not really a fever at all. It's an allergy to plant pollens. People with this type of allergy have symptoms such as watery eyes, sneezing, and a runny nose. A common cause of hay fever is the pollen of ragweed. Many people are also allergic to poison ivy ( Figure below ). Skin contact with poison ivy leads to an itchy rash in people who are allergic to the plant. Choices: - nitrogen - fungi - grass - pollen A:
pollen

Q: What is the vertical extent of ocean water called? Read this paragraph and choose the correct option from the provided answers: Scientists refer to the vertical extent of ocean water as the water column . Two main zones based on depth of water are the photic zone and aphotic zone. The photic zone is the top 200 meters of water. The aphotic zone is water deeper than 200 meters. The deeper you go, the darker the water gets. That's because sunlight cannot penetrate very far under water. Sunlight is needed for photosynthesis. So the depth of water determines whether photosynthesis is possible. There is enough sunlight for photosynthesis only in the photic zone. Choices: - oceanic pillar - ocean column - water row - water column A:
water column

Q: What is formed when each sodium atom donates its single valence electron to a chlorine atom? Read this paragraph and choose the correct option from the provided answers: Ionic bonds are possible because the elements involved have either donated or accepted one or more electrons. Sodium chloride is formed when each sodium atom donates its single valence electron to a chlorine atom. As a result, both ions have a noble gas configuration, and an attraction is formed between the positive sodium ions and the negative chloride ions. Choices: - carbon chloride - nitrogen chloride - trioxide chloride - sodium chloride A:
sodium chloride