It is my holiday home work so plz help me
1 why should we need sunlight everyday or in the form of energy
2 who discover pathogen for the first time.
3 what are the requirement for good health.
4 what are the functions of heamoglobin.
5 write short note on green house effect with suittable example.
6 how are clouds forms.
7 why fertile soil necessary for crop production.
8 what is pollution . Name its type , and how it can we prevent or cantrol peastical - an type of pollution.