Perisere takes more period than subsere to reach climax community. Why?

Explain how does: A primary succession start on a bare rock and reach a climax community?

Ethylamine is more basic than ammonia. Why ?

Ethylamine is more basic than ammonia. Why ?

A doctor / nurse/ health-worker is exposed to more sick people than others inthe community. Find out how she avoids getting sick herself.

Steel is more elastic than rubber. Explain why?

Why are pentahalides more covalent than trihalides ?

Why are pentahalides more covalent than trihalides ?