Q: Exposure to what is the most common cause of hearing loss? Read this paragraph and choose the correct option from the provided answers: The most common cause of hearing loss is exposure to loud sounds. Loud sounds damage hair cells in the ear that are needed for hearing. Louder sounds damage hair cells more quickly than softer sounds. Choices: - Guitar - angry sounds - outside sounds - loud sounds A:
loud sounds

(Question)
Q: In a hydrogen replacement reaction, the hydrogen in the acid is replaced by what? Read this paragraph and choose the correct option from the provided answers: In a hydrogen replacement reaction, the hydrogen in the acid is replaced by an active metal. Choices: - gas - water - oxygen - an active metal A:
(Answer)
an active metal

Ques: Q: What alloy is made from copper and zinc? Read this paragraph and choose the correct option from the provided answers: Brass saxophone: Brass is an alloy of copper and zinc. It is softer than bronze and easier to shape. It's also very shiny. Notice the curved pieces in this shiny brass saxophone. Brass is used for shaping many other curved objects, such as doorknobs and plumbing fixtures. Stainless steel sink: Stainless steel is a type of steel that contains nickel and chromium in addition to carbon and iron. It is shiny, strong, and resistant to rusting. This makes it useful for sinks, eating utensils, and other objects that are exposed to water. "Gold" bracelet: Pure gold is relatively soft, so it is rarely used for jewelry. Most "gold" jewelry is actually made of an alloy of gold, copper and silver. Bronze statue: Bronze was the first alloy ever made. The earliest bronze dates back many thousands of years. Bronze is a mixture of copper and tin. Both copper and tin are relatively soft metals, but mixed together in bronze they are much harder. Bronze has been used for statues, coins, and other objects. Choices: - iron - stele - manganate - brass A:
Ans: brass

(Q).
Q: The result of what, in places like the amazon rainforest, is that food will be harder to produce, clean water will be harder to find, and development of new medicines will become slower? Read this paragraph and choose the correct option from the provided answers: percent of the Amazon rainforest was lost. Rates are higher in other tropical rainforests. What we are likely to notice on a day-to-day basis as a result of biodiversity loss is that food will be more difficult to produce, clean water will be more difficult to find, and the rate of development of new medicines will become slower, as we depend upon other species for much of these services. This increased loss of biodiversity is almost entirely a result of human activities as we destroy species' habitats, introduce disruptive species into ecosystems, hunt some species to extinction, continue to warm the planet with greenhouse gases, and influence nature in other ways. Slowing the loss of biodiversity is within our abilities if we make dramatic changes in our consumptive behavior and identify and protect the elements of our ecosystems that we depend on for our lives and welfare. Choices: - environmnental loss - pollution loss - biological loss - biodiversity loss A:
(A).
biodiversity loss

Ques:Q: Which organisms break down either organic or inorganic molecules to supply energy for the cell? Read this paragraph and choose the correct option from the provided answers: Chemotrophic organisms break down either organic or inorganic molecules to supply energy for the cell. Some chemotrophic organisms can also use their organic energy-supplying molecules as a carbon supply, which would make them chemoheterotrophs. Choices: - photoreactive organisms - asexual organisms - spicule organisms - chemotrophic organisms A:

Ans:chemotrophic organisms

Q: What organism is characterized by an incomplete digestive system and a single, tentacled opening? Read this paragraph and choose the correct option from the provided answers: Cnidarians have an incomplete digestive system with a single opening. The opening is surrounded by tentacles, which are covered with nematocyst cells and used to capture prey. Digestion takes place in the digestive cavity. Nutrients are absorbed and gases are exchanged through the cells lining this cavity. Fluid in the cavity supports and stiffens the cnidarian body. Choices: - annelids - prokaryotes - sponges - cnidarians A:
cnidarians