How does man changes his environment?

Answer 1

People that plant things change their environment. Plants provide oxygen and take in carbon dioxide. The more you plant, the more oxygen you aid in putting into their air and the more carbon dioxide you aid in removing from the air.

People that build damns try to control a water source. Check out the Mississippi flooding zones. People put up their levies and damns. This changes the natual flood path. But, the flood path gets narrower and higher. This will impact the water draining from the northern areas, especially after a major rainfall.

How about toxic chemicals produced that have a long shelf life that somehow seep into the ground or water sources? That is bound to have an effect. There are facilities that store nuclear waste. This has to been maintained by human beings. If they aren't doing their jobs properly, things can happen.

Think about when you are driving through different towns. Notice all of the litter and debris. People that aren't responsible and pick up after themselves just toss things outside... if no one picks it up, it stays there. If it's biodegradable .. okay. Good, I suppose.

And when mother nature and mankind work together to wreak havoc... let's say a tornado passes through a pretty big town. And no clean-up crews or anyone pick up things.... all those houses and businesses have cleaning supplies, automotive chemicals, etc. One house may be no big thing. But, every place a tornado demolishes will probably have those things. A lot of those things are harmful if not fatal to humans. Can't be that good for plants or animals, either.

Also.. there are people that don't take antibiotics right - as well as a few other things. They aid in creating these superbugs that are resistant to antibiotics. Well... those nasty bugs are bound to do some nasty things to people... possibly even animals. People are part of the environment. I don't care who you ask. Animals consume however many insects and plants in their lifetime. Specific animals go after specific things. So, something bad enough could affect the balance between the current human, animal, plant, insect, arachnid, fungus popluations.

In no way is this list complete or 100% scientificly correct. This is what makes sense to me. People affect their environment in a lot of ways. Good and bad. I hope this info helps steer you towards the proper answers you need.

Answer 2

How living things response in change to their environment depends on the genetic diversity in the population. Let's say there was one million population of rabbits. Then after a catastrophe, over 700000 rabbit population was wiped out. Now the reason why there are still 300000 rabbits surviving was because there was a great genetic diversity in the population. Even after a catastrophe, these remaining 300000 rabbits possessed an adaptation to resist against the change. Now the quesiton is how will these 300000 rabbits respond to the NEW environment after the catastrophe? You have to understand that there is still genetic diversity remaining in the 300000 rabbit population. Let's say the catastrophe wiped out all the grassland, leaving almost no food. However, I can guarantee you that some of these 300000 rabbits have an adaptation to resist without the grass supply. Pretty much think of natural selection: Nature selects traits suitable for the environment. As time goes on without grassland, more rabbits would start to find more food other than grass, thus leading to speciation and more.

Answer 3

because they meesesd it up bad because they are stupid