Answer:
The correct answer is A. energy was required to produce the concentration gradient.
Explanation:
There are two types of transport through which a molecule moves in and out of the cell and these are active transport and passive transport. In passive transport, the molecule moves without the help of energy because they move down there concentration. So in passive transport, if concentration gradient changes then passive transport will take place.
In active transport, the molecule move against their concentration gradient with the help of energy or ATP. So in passive transport, the concentration of molecule can be high in the cell because its transport occurred against the gradient with the help of energy. So the correct answer is A.
One organism that was influenced is fish in the ocean thanks to the Plankton. Because of the increasing amount of CO2, the plankton which lives off of it has started to multiply and take away more and more air from the water which is causing fish to die out. Thanks to this, huge amounts of water are full of dead fish and are polluted almost beyond repair. This is also seen in the coral reef area which has started to die out.
Another one affected on land is the polar bear which has more and more difficulty finding food and have even been reports that they've turned even to eating eggs of other animals because the way the CO2 is affecting the freezing of the sea they have problems finding food.
The correct answer is - Canada.
Canada is the country that has the most forest area from the countries on this list. It is actually the second country in the world by forest area, with only Russia being in front of it. Canada has around 4,916,438 km² of forest. Brazil is very close to it, and it is in the third place globally, with the United States being placed as fourth, China as fifth, and Argentina as eight.
Canada's forests are stretching pretty much all over its southern half, creating a landscape of dense coniferous forests, and in certain areas of deciduous forests. Even Canada's flag has a leaf on it, more specifically a leaf of a maple tree.
Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to the atmosphere.
