“A problem that cash crop agriculture has on the environment is that of soil erosion. With farmers plowing more and more land in order to grow more and more crops, the soil had nothing holding it down. In a more natural ecosystem, the various grasses, weeds, and trees helped to keep the soil intact, and in place. But when the fields were plowed, and the trees cut, there was nothing to keep the soil there anymore. The rains wash the soil into the streams and rivers, causing water quality depletion, and choking the waterways with sediment. Again the ripple effect will continue to grow from within the rivers, which help to damage more ecosystems downstream from the farms as well as those the farms effect directly. After the good soil has been washed away, farmers no longer get the yield of crops that they desire; so new fields are plowed, and more trees are cut in order to create new fields.”
Based off this- water pollution seems a good answer
Answer:
-all species change gradually over time.
Explanation:
Mutation often results from cell replication and division. These occur as small, random, errors within the genetic code that become more common or stable within a population over time as traits.
As organisms live within varying niches, environmental changes may render some genetic traits obsolete. However, others may become more beneficial as an adaptation. These adaptations, which make an organism and its offspring suited to a niche, and more likely to survive and reproduce become inherited- this process is called evolution.
Answer:
They use food to gain energy they need to do what they do everyday
Explanation:
