MCQs Answers:
The blue area on the globe represents:
✅ D) Ocean
Which provides shelter to many organisms?
✅ B) Soil
Which of the following provide oxygen?
✅ A) Forest
Which one of the following is used to make fertilizers?
✅ C) Natural gas
Solid non-living chemicals present on Earth are called:
✅ A) Minerals
Section-II
Uses of metals:
Metals are used to make utensils.
They are used in machines and vehicles.
Used in buildings and bridges.
Used for electric wires.
What is hydroelectricity?
Hydroelectricity is electricity produced by flowing or falling water.
What is reflection of light?
The bouncing back of light from a surface is called reflection of light.
When can we see rainbow? How is it formed?
We can see a rainbow after rain when sunlight shines.
It is formed when sunlight passes through water droplets and splits into different colors.
What is machine and how does it work for us?
A machine is a tool that makes work easier and faster for us.
Section-III
Write four advantages of friction in daily life:
Friction helps us walk without slipping.
It helps vehicles move on roads.
We can write with a pencil because of friction.
Brakes work due to friction.