Question 1

Which of the following changes that are useful to one's environment?

Accepted Answer

Changing wood into charcoal

Answer

Throwing of waste into the river

Answer

Burning of old tires and other plastics

Answer

Cutting down trees

Question 2

The following changes in the materials are useful to the environment EXCEPT

Accepted Answer

using pesticides in killing insects

Answer

using old newspaper in wrapping gifts

Answer

using eco- bag when buying groceries

Answer

using both sides of paper when writing

Question 3

Which of the following practices should NOT be done?

Accepted Answer

Cutting down trees.

Answer

Using cloth bag, eco bag/paper bag when buying groceries.

Answer

Buy items in refillable container.

Answer

Consider the potential life span or durability when buying new products.

Question 4

The following are the 5R’s of responsible waste management EXCEPT

Accepted Answer

Throwing of kerosene, chemicals and other toxic wastes into the river.

Answer

Buy durable food storage containers instead of using foil, plastic bags

Answer

Make a compost pit

Answer

Avoid buying disposable items or single use product

Question 5

One morning, you saw plenty of dry leaves on the ground. Your mother told to you to clean up and dispose them. How are you going to dispose the dry leaves?

Accepted Answer

Make a compost

Answer

Throw them in a river

Answer

Answer

hrow then in a vacant lot

Question 6

When heat is applied to a material, its temperature decreases.

Accepted Answer

false

Answer

true

Question 7

Melting of butter is an example of liquification.

Accepted Answer

true

Answer

false

Question 8

When heat is removed to a material, it causes the material to solidify

Accepted Answer

true

Answer

false

Question 9

The application of heat to a material may also result into changes in the chemical composition of the material.

Accepted Answer

true

Answer

false

Question 10

Materials do not expand and contract when exposed to heat.

Accepted Answer

false

Answer

true

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