Page 21 - Grade 4 Q2W5-sample

Moreover, reptiles like the desert lizard and small insectivorous
mammals like rats, and mice also prey cockroaches.

When humans burned forests to make charcoal or convert it to

an agricultural area or a housing project, an ecological imbalance happened.
The life cycle of cockroaches became disrupted. The nutrient cycle of the

forest was altered. The food supply of animals especially parasitic wasp and

woodpecker were greatly affected.

Let’s Apply

Read and study the selection below. Then, answer the given

questions. Write them on your answer sheet.

You are helping your mother clean the house. While sweeping the

cabinet under the sink, you saw something like this everywhere attached to
the wall of your kitchen cabinet.

1. What is the name of this thing? ____________
2. What is inside of this thing? _______________
3. What will you do with this thing? __________

________________________________________
4. Do you think you made a good decision?
_________________________________________
5. Why and why not? _______________________

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