Yes, not all diseases have a noticeable physical effect on your body. A negative effect of this is you might not know you have the disease.
Answer:
as the population of the lynx decreased over time, the snowshoe hare's population increased. when one of the species populations changes, the other does as well along with it. this trend says that these species are dependent on each other.
Explanation:
Wetlands are often drained in many regions to facilitate human use of the land. This happens a lot within the Pairie Provinces of Canada, where wetlands are drained to make way for agriculture. Wetlands are also often drained so as to use the land for building houses. Humans have also altered the flow of rivers through constructing dams and over-abstracting water. In many regions, depressions that would have been flooded in the past to form wetlands are no longer saturated. Wetlands also act as a 'sink' for many pollutants, and much of the pollution released into upstream rivers by humans may settle into the relatively stagnant waters of wetlands, to be absorbed into the sediments, where often it acts as a chronic pollutant, negatively effecting the aquatic ecosystem and water quality downstream.
Answer:
Rivers start as a small body of water. As it is fed by rain, melting snow and ice, it grows larger and becomes a gully. If the right conditions are met and the gully is fed by more water, it becomes a large body of water - a river.
Explanation:
Rivers usually start as a small body of water, known as a stream, that runs and <u>flows down a mountain or a hill</u>. If the right and optimal conditions are met, <u>rains starts falling and feeds different streams that eventually meet and form an individual and larger body of water known as a large channel or gully</u>.
This body of water <u>grows larger as it continues to be fed by rainwater and snow melting (depending on the location) and becomes a </u><u>river</u>. Once multiple rivers are formed, they empty out into the ocean.