Biology

The process of loosening of soil is called __________

• levelling

• ploughing

• fallowing

• none of the above

Which is the method of growing different crops alternatively on the same field?

• fallowing

• mixed cropping

• crop rotation

• none of the above

The unwanted plants that grow along with cultivated crops are called?

Which are the organism among these that attack and damage crops?

• rodents

• locust

• worms

• bugs

Which is the traditional method of irrigation among these?

• chain pump

• drip system

• sprinkler system

• rahat

Which device is used to see a microorganism?

Which is the first scientist to describe microorganism?

• Antonie van leeuwenhoek

• Alexander Fleming

• Nicolas Cambell

• none of the above

Lactic acid is present in milk

• True

• False

A particular vaccine is given at a particular age. This is called _________

What is Red data book

• Book of endangered species

• Book about the Eco system

• Book of endemic species

• none of the above