Those diseases which spread by the air , water or any other medium is known as communicable diseases.
Answer:
Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease.
Sports specialization has lead to a increase in the injuries sustained by the young athletes.The answer to the above question is (D) Sports specialization is a major cause of the increase in the injuries
Explanation:
As per the study of Orthopaedic Journal of Sports young athletes who specialize in their chosen sports are more prone to sports injuries like stress fractures,ACL tears and tendinitis because of more rigorous exercise in comparison to their peers