Question : The narrow zone of contact between the lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called the:

Option 1: Geosphere

Option 2: Biosphere

Option 3: Troposphere

Option 4: Exosphere

Question : The process of imbibition involves

Option 1: Diffusion

Option 2: Capillary action

Option 3: Absorption

Option 4: Both 1 and 2

Question : Which of the following helps keep the Earth's atmosphere in place?

Option 1: The gravitational force of the moon

Option 2: Rotation of the Earth on its axis

Option 3: The gravitational force of the Earth

Option 4: The gravitational force of the Sun

Question : ______ is a naturally occurring phenomenon that is responsible for the heating of the Earth’s surface and atmosphere.

Option 1: Greenhouse effect

Option 2: Radiation

Option 3: Global warming

Option 4: Global heating

Question : In which of the following silicon is not used?

Option 1: Solar panels

Option 2: IC manufacturing

Option 3: Optical glass

Option 4: Ink pen