A. Directions: Read each item carefully, then answer the questions that follow. Write the letter of the best answer on the sheet provided.

1. Hard, cold, transparent and smooth are observations that describe a/an

a. cubed ice

b. pillow

c. rain

d. stone

2. Which materials are non-biodegradable?

a. rubber tire

b. styrofoam

c. plastic bottle

d. All of these.

3. Why do some materials like sponge and paper towel absorb water?

a. They are flexible.

b. They are soft.

c. They are hard.

d. They have pores.

4. What cause/s fruits like apples and bananas to decay easily?

a. bacteria

b. carbon dioxide

c. fungi

d. All of these.

5. Decayed materials found in garbage are breeding places of harmful insects like flies, mosquitoes and cockroaches. What should be done to prevent this scenario?

a. Segregate biodegradables from non-biodegradables.

b. Use compost pit in disposing biodegradables.

c. Recycle non-biodegradables.

d. All of these.​