State true or false:
Organic farming involves the replacement of chemical fertilizers and pesticides by biofertilizers and biopesticides.

Organic farming involves the replacement of chemical fertilizers and pesticides by biofertilizers and blopesticides.

State true (T) or false (F).

Why biopesticides are better than chemical pesticides?

State True or False : One million =10^(7)

State True or False: A ratio can be equal to 1.

A farmer is growing a crop regularly in his field. He uses chemical fertilizers, pesticides, organic manure as well as bio-fertilizers. Very close to his field is a factory which emits smoke as a by product. There is also a huge lake in the nearby area. An expert agriculturist suggests to the farmer to minimize the use of chemical fertilizers and instead use biofertilizers as they have many advantages over chemical fertilizers. Which of the following is NOT true for biofertilizers?

What are advantages of biofertilizers over chemical fertilizers. Give an example of biofertilizer.