on the genral questions on science page 88

what would happen in the following cases:
a-nitrogen is not present in atmospheric air

exam 1

6-we get rid of soil bacteria


يا ريت اجابه بسيطه اقرب لمخ الطالب

برجاء اى حد عنده امتحانات القاهره او اى محافظه يعرضها علينا ولكم جزيل الشكر

1-we can't produce ammonia or nitrogenous fertilizers
2-there's going to be alot of fires

so we gonna write abt the importance of nitrogen

what abt soil bacteris are we gonna answer it abt nodular bacteria and fixing nitrogen in legumes

living organisms can't build body proteins and can't control burning so fires increases

ششششششششششششششششششششش

.......................... We can"t make stanlessteel or electronic devices
and more th:ings
:):):):):):):):):):):):)