Exposure to radiation and toxins. This is because the radiation can basically fry the sperm causing many reproductive issues in men.
2.) Malaria!
3.) Ozone Layer! (:
Hope this helps and everything is well! (:
Answer:
Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as by holding a heavy book or a dumbbell at the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state.
Explanation:
<span>The process in which hydrogen introduced to vegetable oil to make them saturated is known as Hydrogenation.</span>
