What can a person do to limit exposure to X-rays?

To limits exposure of X-rays, One can do the following things:

1) Use a  protective shield through which X-Rays can't pass.

2) Prevent X-rays as much as u can.

3) Don't go to places where you doubt the presence of X-Ray Radiations.

4) If not needed, Don't do CT scan.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".