Question

What was the main reason for the extinction of dinosaurs and mention the causes

Answer 1

main reasons for their extinction were:
1. lack of availability of food due to their big size.
2.geographical isolation.
3.starting of ice age due to meteor falling.. they were cold blooded animals.

mark it brainliest

Answer 2

A hepatitis B infection can result in either an acute infection or a chronic infection. When a person is first infected with the hepatitis B virus, it is called an "acute infection" (or a new infection). Most healthy adults that are infected do not have any symptoms and are able to get rid of the virus without any problems. Some adults are unable to get rid of the virus after six months and they are diagnosed as having a "chronic infection." A simple blood test can diagnose an acute or chronic hepatitis B infection.