Answer:
scientist study the earth core by using submarine..
Just as you "step" outside of our Earths ozone layer everything there it will kill you if not for the special suits! Radiation, space vaccum, pressure, temperature, etc is not human species friendly! That's why we need The ozone layer, without which we would not survive more than a few days on this planet!
Answer:
There are two things that cause landforms on the Earth's surface to change. These are human forces and forces in nature. Human Forces include Possibilism where humans change a surface for their own gain. Natural forces inclyse daily processes of precipitation, wind and land movement result in changes to landforms over a long period of time. Driving forces include erosion, volcanoes and earthquakes.