Class 7 Chapter Environment

Which one of these is a part of natural environmental ?

• Tree

• Road

• school

• House

which one of these is a biotic component ?

• Soil

• rose plant

• Rainwater

• Oxygen

Which is the top layer of the earth and is made of rock and minerals covered with thin layer

• lithosphere

• ecosystem

• hydrosphere

• troposphere

Domains of water is referred as

• atmosphere

• hydrosphere

• ecosystem

• lithosphere

It is the thin layer of the air that surrounds the earth

• atmosphere

• lithosphere

• hydrosphere

• troposphere

Which is a threat to environment

• growing plant

• growing population

• growing crops

Which system is made by the interaction of all living organisms with each other and with the physical and chemical factors

• ecosystem

• lithosphere

• hydrosphere

• troposphere

Which is a human made environment

• Mountain

• Sea

• Road

Which is not a component of human environment

• land

• religion

• community

Which is not a natural ecosystem

• Desert

• Aquarium

• Forest