Answer the following question given this paragraph: A caldera forms after a massive eruption. The top of the volcano collapses, forming a basin. Q: When does a caldera form? Choices: - after a hurricane - when faults form - before an eruption - after an eruption A:
after an eruption
(Question)
Answer the following question given this paragraph: Only mammals have hair. Hair is a fiber made mainly of the tough protein keratin. The cells of each hair are filled with keratin and no longer alive. The dead cells overlap each other, almost like shingles on a roof. They work like shingles as well, by helping shed water from hair. Q: What is the only class of animals that has hair? Choices: - reptiles - amphibians - birds - mammals A:
(Answer)
mammals
Ques: Answer the following question given this paragraph: Blood from the lungs enters the left atrium of the heart. The left atrium pumps the blood to the left ventricle, which pumps it to the body. This loop is represented by the red arrows in Figure above . Q: Which side of the heart does blood from the lungs enter into? Choices: - right ventricle - left ventricle - right atrium - left atrium A:
Ans: left atrium
(Q).
Answer the following question given this paragraph: Q: What are elements required in very small amounts? Choices: - pollutants - minerals - macronutrients - micronutrients A:
(A).
micronutrients
Ques:Answer the following question given this paragraph: Yes! The outer core, anyway. The outer core is liquid metal, like in this photo. Of course, the metal is under an incredible amount of pressure. Q: What is the outer core made of? Choices: - compressed air - solid rock - solid iron - liquid metal A:

Ans:liquid metal
Question: Answer the following question given this paragraph: In the equation for pressure, force is expressed in newtons (N) and area is expressed in square meters (m 2 ). Therefore, pressure is expressed in N/m 2 , which is the SI unit for pressure. This unit is also called the pascal (Pa) . It is named for the scientist Blaise Pascal, whose discovery about pressure in fluids is described later in this lesson. Pressure may also be expressed in the kilopascal (kPa), which equals 1000 pascals. For example, the correct air pressure inside a mountain bike tire is usually about 200 kPa. Q: In the equation for pressure, how is force expressed? Choices: - meters - pounds - teraflops - newtons A:
Answer:
newtons