Which of the following cycles is the most important for life? A) the nitrogen cycle
B) the oxygen cycle
C) the water cycle
D) carbon cycle
E) all are important for life

What came first the elephent or the crocodile

According to the loco mass the mass of reactants and products

Wind energy is plentiful in regions with vast open spaces it is a non polluting renewable resource what could be an economic factor that makes the use of this resource less feasible then non renewable resource even in such regions