b. food abundance
c. high levels of nutrients
d. water abundance
Fish that feed on sediment will most likely be found in _______ rivers.
a. shallow
b. narrow
c. deep
d. fast-moving
Which of the following is a way that humans impact rivers and streams?
a. pollution
b. dams
c. flooding
d. all of the above
Correct answer choice for question 1 is :
A) Type of wetland
Explanation:
Wetlands, as determined by the Convention on Wetlands of International Significance, cover lakes and rivers, bogs and swamps, wet meadows and peat lands, havens, bays, deltas and tidal flats, near-shore aquatic zones, mangroves and coral beaches, and human-made places such as fish pools, rice paddies, lakes, and salt pots. Wetland ecosystems endure a vital part of Europe’s biodiversity.
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Correct answer choice for question 2 is :
A) Shallow
Explanation:
River reservoirs are normally small, and in the case of hill rivers, steep and erosion. In warm conditions, small rivers tend to be sheltered by an interlocking, above tree umbrella. Such situations result in cool, well-oxygenated streams that are sufficiently provided with a feed center of petals. Fine shreds of basic matter are delivered as the leaves are broken down by organic areas in the streams.
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Correct answer choice for question 3 is :
D) All of the above
Explanation:
Sulfur dioxide and nitrogenous oxide released from industries and power plants infiltrate river ways by acidic rainfall. Sewerage and effluent are released into rivers in some regions. Pollution can decrease the pH of the water, attacking all organisms from algae to vertebrates. Biodiversity reduces with reducing pH.
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The topography of the seafloor gives us a nice clue about the seafloor spreading. This can be seen in the highest of the underwater features. The mid-ocean ridge is the highest. It is the place where the magma comes out, cools off, and constantly creates new rocks, or rather crust. As we move further away from the mid-ocean ridge, we will notice that the sea mounds are getting smaller and smaller, but also more rounded, or flatter. This is an evidence of the erosion by the water. As the water erodes the crust, it loses on height, thus becomes less pointy, and more rounded or flatter. As we move even further away we will see that there's no more sea mounds, but it is only the old crust that is predominantly flat, which of course has been caused by the millions of years of erosion by the water. This was actually the first thing that has been noticed and that gave a clue to the scientists that maybe the seafloor is spreading, and with the further examinations of it, it turned out to be true.