Question

please help guys!! medals rewarded:))))

you will explain how human activity and natural processes alter the hydrosphere, biosphere, lithosphere, and atmosphere where you live. You may need to do some research about natural processes that occur in your area. For example, do you live near an earthquake zone or body of water? Human activities you might consider are agricultural practices or pollution. Be informed about at least one human activity and one natural process and how they affect each environmental sphere.

Answer 1

so you have to find the differences or something?!?! lol

Answer 2

Human activities have very little effect on the lithosphere, except that we dig holes in it to extract minerals and oil and gas, and on the atmosphere, except that we raise the levels of pollutants locally in cities, and may slightly later the amount of trace gases, like methane (from husbandry) and CO2 (from combustion) These things are measureable, to be sure, but completely dwarfed by the natural processes, e.g. erosion by rivers and rain in the case of the lithosphere, and the natural exchange of gases with plants and oceans in the case of the atmosphere.

Humans have the most effect on the hydrosphere, particularly the rivers and lakes part of it, and on the biosphere (the animals and plants). The most significant influence is generally agriculture, which by definition requires altering the plants the grow over large swathes of the Earth, which changes the ecology and also inserts streams of materials into the local water cycle, e.g. you get more nutrients valuable to crops taken out, more waste related to crop decay and fertilizer entering the local water supply, and so on. Furthermore, human activity diverts water flow away from where it would naturally go, which also significantly changes the ecology. For example, it isn't uncommon for the mouth of the Colorado River to be dry, simply because all of the water flowing down it has been diverted to agricultural uses by states in the USA and Mexico. (This also has some changes to the lithosphere or hydrosphere, depending on how you define them, because it changes patterns of erosion and flooding. A related fact is that flood control can be pursued for its own reasons, e.g. along the Mississippi River,and that, too, changes patterns or erosion and flooding.)

Another very significant effect on the biosphere (including ourselves) is human transportation, which allows species to mix rapidly over very large distances, distances that natural processes would take centuries to cover. This allows, for example, diseases in Africa to strike Americans within weeks or months of emerging, allows global pandemics, is thought to have caused the decimation of Native American tribes when European settlers first arrived in the 1600s. It also allows alien species to disrupt ecologies, e.g. the way zebra mussells have been a problem in the Great Lakes, how Africanized bees and water hyacinth got to be a pain in the US. Some say the native populations in the Everglades are being decimated by pet snakes accidentally and deliberately released into the wild...

Against these effects, the more usually highlighted effects, such as of industrial and automobile air pollution, "toxic waste," and whatnot, are much smaller effects.