Answer:
The correct answers are:
1. Greenhouse gases: Earth's heat is kept from going away.
Greenhouse gases, particularly CO2 and methane, have properties that allow them to trap heat in the atmosphere. This means that the more of these gases there are in the air, it will be hotter on Earth.
2. Chemicals released into the river—unfit for human consumption.
The chemicals released into rivers pollute the water, making it unfit for human consumption. There are only a few places in the world where there is enough freshwater to go around, so the fact that so many rivers have been poisoned is very worrying.
3. Excessive agricultural land use—forest fragmentation.
People cut down the trees so that there is more land that can be used for farming, As a result of this process, forests are being destroyed to the point of total devastation, and it is likely that this percentage will rise in the coming years as things continue.
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<em>I hope this helps you</em>
<em>:)</em>
Answer:
It helps them survive
Explanation:
Mimicry is when animals have forms and coloration that makes them blend in with their environment, which helps them to escape from their predators or approach their prey undetected and thus mimicry helps organisms survive. An example is the stick insect. They look like real sticks in shape and color and even move in a way that resembles a stick movement by the wind. This way they may escape the sharp vision of many insectivorous birds.
<span>monosaccharides for the strength
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Genetic variation allows for a greater chance of a population surviving. For example, if a plant species acquires a disease, without genetic variation the disease would just keep getting passed on to the next identical organism and the population would decline and eventually die. But genetic variation prevents that from happening, because you have so many other species in the ecosystem, and genetic variation is a product of sexual reproduction meaning that the offspring of the diseased plant has a possibility of not inheriting the disease.
Answer:
I am not certain but I think carbohydrate
