Page 90 - Arrow Publications Pvt. Ltd.

IV. Answer the following questions in three or four sentences.

1. Describe the body features of an insect.

2. Explain how insects can be helpful and harmful to us.

3. Write about any two worms.

4. Write any two differences between insects and worms.

H TS Critical Thinking

What would happen if there were no insects and worms in our environment?

Know More

Most of the fireflies produce light from their abdomen.

They are more active at night. Because of their ability
to produce a magical glow that can brighten the entire

night, these are also known as lightning bugs.

Let’s Do Picture Based Question

Read the following sentences and answer the following questions by
ticking the correct option.

Mosquitoes bite humans and suck blood, spreading diseases such as malaria

and dengue.

1. Identify the mosquito.

a. b.

2. Which season is it that there are more mosquitoes around?
a. b.

88 88 | Arrow - EVS Plus-3