Answer the following question given this paragraph: Less energy is needed to get renewable energy sources. Solar energy is a good example. Sunlight is everywhere, so no one needs to go out and find it. We don't have to drill for it or pump it to the surface. We just need to install solar panels like the ones in Figure below and let sunlight strike them. The energy from the sunlight is changed to electricity. The electricity is used to power lights and appliances in the house. So solar energy doesn't have to be transported. Q: What renewable energy source converts energy from the sunlight into electricity? Choices: - geophysical energy - geothermal energy - hydrostatic energy - solar energy A:
solar energy
(Question)
Answer the following question given this paragraph: Humans have caused many extinctions by introducing species to new places. For example, many of New Zealand's birds have adapted to nesting on the ground. This was possible because there were no land mammals in New Zealand. Then Europeans arrived and brought cats, foxes, and other predators with them. Several of New Zealand's ground nesting birds, such as this flightless kiwi, are now extinct or threatened because of these predators. Q: What can ultimately result when species are introduced to a new place and prey on other species? Choices: - depletion - over population - elimination - extinction A:
(Answer)
extinction
Ques: Answer the following question given this paragraph: The troposphere is the lowest layer of the atmosphere. All of the air you breathe is in the troposphere. All of Earth's weatherwind, rain, snow, heatis in the troposphere. The troposphere is the lowest and most important layer of the atmosphere!. Q: What is the lowest layer of the atmosphere? Choices: - ionosphere - chromosphere - lithosphere - troposphere A:
Ans: troposphere
(Q).
Answer the following question given this paragraph: Seminiferous tubules can be seen in a cross section of a testis pictured in Figure below . The tubule is lined with spermatogonia, which are diploid, sperm-producing cells. Surrounding the spermatogonia are other cells. Some of these other cells secrete substances to nourish sperm, and some secrete testosterone, which is needed for sperm production. Q: What is secreted by the cells surrounding spermatogonia to help sperm production? Choices: - estrogen - dihydrotestosterone - follicle stimulating hormone - testosterone A:
(A).
testosterone
Ques:Answer the following question given this paragraph: What if you were to drop a bowling ball and a soccer ball at the same time from the same distance above the ground? The bowling ball has greater mass than the basketball, so the pull of gravity on it is greater. Would it fall to the ground faster? No, the bowling ball and basketball would reach the ground at the same time. The reason? The more massive bowling ball is also harder to move because of its greater mass, so it ends up moving at the same acceleration as the soccer ball. This is true of all falling objects. They all accelerate at the same rate due to gravity, unless air resistance affects one object more than another. For example, a falling leaf is slowed down by air resistance more than a falling acorn because of the leaf's greater surface area. You can simulate the effect of air resistance on acceleration due to gravity by doing the interactive animation at this URL: http://www. science-animations. com/support-files/freefall. swf. Q: In the absence of air resistance, all falling objects accelerate at the same rate due to what force? Choices: - velocity - weight - motion - gravity A:

Ans:gravity
Answer the following question given this paragraph: Reproduction Fungi reproduce sexually and/or asexually. Perfect fungi reproduce both sexually and asexually, while the so-called imperfect fungi reproduce only asexually (by mitosis). In both sexual and asexual reproduction, fungi produce spores that disperse from the parent organism by either floating on the wind or hitching a ride on an animal. Fungal spores are smaller and lighter than plant seeds. The giant puffball mushroom bursts open and releases trillions of spores. The huge number of spores released increases the likelihood of landing in an environment that will support growth (Figure 24.6). Q: What do all respiratory diseases affect? Choices: - liquid exchange process - helium exchange process - transit exchange process - gas exchange process A:
gas exchange process