Q: Which members of the food chain break down remains of plants and other organisms when they die? Read this paragraph and choose the correct option from the provided answers: When plants and other organisms die, decomposers break down their remains. In the process, they release nitrogen in the form of ammonium ions. Nitrifying bacteria change the ammonium ions into nitrates. Some of the nitrates are used by plants. Some are changed back to nitrogen gas by denitrifying bacteria. Choices: - nematodes - Respiration - fluxes - decomposers A:
decomposers

(Question)
Q: What is friction that acts on objects that are moving through a fluid? Read this paragraph and choose the correct option from the provided answers: Fluid friction is friction that acts on objects that are moving through a fluid. A fluid is a substance that can flow and take the shape of its container. Fluids include liquids and gases. If you've ever tried to push your open hand through the water in a tub or pool, then you've experienced fluid friction. You can feel the resistance of the water against your hand. Look at the skydiver in the Figure below . He's falling toward Earth with a parachute. Resistance of the air against the parachute slows his descent. The faster or larger a moving object is, the greater is the fluid friction resisting its motion. That's why there is greater air resistance against the parachute than the skydiver's body. Choices: - fluid catalyst - fluid temperature - mass friction - fluid friction A:
(Answer)
fluid friction

Ques: Q: What is responsible for the properties of metals? Read this paragraph and choose the correct option from the provided answers: The metallic bond is responsible for the properties of metals. Choices: - the metallic properties - the metallic presence - the metallic yield - the metallic bond A:
Ans: the metallic bond

(Q).
Q: The coordinated activities of the legume and the rhizobium bacteria depend on what between the partners? Read this paragraph and choose the correct option from the provided answers: Choices: - electric signals - sight signals - fertilizer signals - chemical signals A:
(A).
chemical signals

Ques:Q: The last major ice age took place in which era? Read this paragraph and choose the correct option from the provided answers: The last major ice age took place in the Pleistocene. This epoch lasted from 2 million to 14,000 years ago. Earth's temperature was only 5 C (9 F) cooler than it is today. But glaciers covered much of the Northern Hemisphere. In Figure below , you can see how far south they went. Clearly, a small change in temperature can have a big impact on the planet. Humans lived during this ice age. Choices: - miocene - pliocene - cenozoic - pleistocene A:

Ans:pleistocene

Q: What is the name of the protective layer of gases that surrounds the earth and blocks harmful rays from the sun? Read this paragraph and choose the correct option from the provided answers: The atmosphere protects living things from the Sun's most harmful rays. Gases reflect or absorb the strongest rays of sunlight. Figure below models this role of the atmosphere. Choices: - the corona - the protector - the coma - the atmosphere A:
the atmosphere