HTET Exam - Level 3 Pgt - Planet Earth And Environment

During cooking, sometimes the outer surface of the bottom of the vessel becomes black. This means that

A student prepared two boxes. In first box the slip containing name of sun, water and air had been put while in second, the slip…

Natural resources includes

Select the odd one out

Which of the following is an alternate source of energy?

Coal, limestone, petroleum, animal shells are all related to :

Principal resource that determine the life on land is:

Select an incorrect statement :

Major component of biogas is :

An example of conventional source of energy is :