Answer the following question given this paragraph: Leaves are rich in chloroplasts that function as solar collectors and food factories. The first leaves were very small, but leaves became larger over time. Q: What are in leaves that function as solar collectors and food factories? Choices: - cellulose - vacuoles - fibroblasts - chloroplasts A:
chloroplasts
Answer the following question given this paragraph: The major wind belts push the water in the surface currents. The water moves in the direction of :. Q: In the tropics what are the prevailing winds called? Choices: - a front - crosswinds - storm winds - tradewinds A:
tradewinds
Q: Answer the following question given this paragraph: The boy in Figure below is working out on a hot day. He's losing a lot of water in sweat. To maintain homeostasis, his body can balance the water lost in sweat by excreting less water in urine. The amount of water lost in urine is controlled by the kidneys. The kidneys are organs of excretion. Q: Which organ in the body controls the amount of water loss in urine in response to maintaining homeostasis? Choices: - lungs - liver - spleen - kidneys A:
A: kidneys
Question: Answer the following question given this paragraph: Not all hydrogen atoms in molecular compounds are ionizable. In methane (CH 4 ), the hydrogen atoms are covalently bonded to carbon in bonds that are only slightly polar. The hydrogen atoms are not capable of ionizing and methane has no acidic properties. Acetic acid (CH 3 COOH) belongs to a class of acids called organic acids. There are four hydrogen atoms in the molecule, but only the one hydrogen that is bonded to an oxygen atom is ionizable. Q: Which class of acids acetic acid (ch 3 cooh) belongs to? Choices: - anorganic acids - strong acids - common acids - organic acids A:
Answer: organic acids
*Question*
Answer the following question given this paragraph: The solubility of gases is also affected by pressure. Pressure is the force pushing against a given area. Increasing the pressure on a gas increases its solubility. Did you ever open a can of soda and notice how it fizzes out of the can? Soda contains dissolved carbon dioxide. Opening the can reduces the pressure on the gas in solution, so it is less soluble. As a result, some of the carbon dioxide comes out of solution and rushes into the air. Q: Increasing the pressure on a gas has what effect on its solubility? Choices: - decrease - halt - slow - increase A:
**Answer**
increase
Answer the following question given this paragraph: The key to how a refrigerator or other cooling system works is the refrigerant. A refrigerant is a substance with a low boiling point that changes between liquid and gaseous states as it passes through the refrigerator. Q: What do you call the substance in a cooling system that has a low boiling point and changes between liquid and gaseous states? Choices: - byproduct - emission - coolant - refrigerant A:
refrigerant