Answer the following question given this paragraph: In some places, the oceanic crust comes up to a continent. The moving crust pushes that continent away from the ridge axis as well. If the moving oceanic crust reaches a deep sea trench, the crust sinks into the mantle. The creation and destruction of oceanic crust is the reason that continents move. Seafloor spreading is the mechanism that Wegener was looking for!. Q: What happens to the crust if the moving oceanic crust reaches a deep sea trench? Choices: - ocean volcano - it cleaves - forms a continent - sinks into mantle A:
sinks into mantle
Answer the following question given this paragraph: Connective Tissue Fibers and Ground Substance Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long and straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the movement of the body. Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that after being stretched or compressed, it will return to its original shape. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column. Reticular fiber is also formed from the same protein subunits as collagen fibers; however, these fibers remain narrow and are arrayed in a branching network. They are found throughout the body, but are most abundant in the reticular tissue of soft organs, such as liver and spleen, where they anchor and provide structural support to the parenchyma (the functional cells, blood vessels, and nerves of the organ). All of these fiber types are embedded in ground substance. Secreted by fibroblasts, ground substance is made of polysaccharides, specifically hyaluronic acid, and proteins. These combine to form a proteoglycan with a protein core and. Q: Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue? Choices: - nucleus tissue - intestine tissue - skin tissue - connective tissue A:
connective tissue
Q: Answer the following question given this paragraph: Q: Despite its small size, an erythrocyte contains about 250 million molecules of what? Choices: - calcium - plasma - potassium - hemoglobin A:
A: hemoglobin
Question: Answer the following question given this paragraph: Thunderstorms are are known for their heavy rains and lightning. In strong thunderstorms, hail and high winds are also likely. Thunderstorms are very common. Worldwide, there are about 14 million of them each year! In the U. S. , they are most common and strongest in the Midwest. Q: About how many thunderstorms are there each year worldwide? Choices: - 21 million - 17 million - 23 million - 14 million A:
Answer: 14 million
*Question*
Answer the following question given this paragraph: Winter solstice for the Northern Hemisphere happens on December 21 or 22. The North Pole of Earth's axis points away from the Sun ( Figure below ). Light from the Sun is spread out over a larger area. With fewer daylight hours in winter, there is also less time for the Sun to warm the area. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere. Q: What season is it in the southern hemisphere when it's winter in the northern? Choices: - Winter - Spring - autumn - summer A:
**Answer**
summer
(Question)
Answer the following question given this paragraph: The speed of a gas particle is directly proportional to the temperature of the system. Q: The speed of a particle in what state is directly proportional to the temperature of the system? Choices: - frozen - solid - liquid - gas A:
(Answer)
gas