4. List a few examples of reversible changes (example-recycling of paper) which may be utilized for benefit of environment.
Answers
Answer:
Melting of ice.
Boiling of water.
Melting of wax.
Stretching of a rubber band.
Stretching of a spring.
Inflation of a ballon.
Ironing of clothes.
Folding of paper.
Answer:
If we want to help the environment, three words to keep in mind are the three R's: reduce, reuse, and recycle. By doing these three things, we can all work together to cut down on the garbage we throw away.
One of the easiest things we can do is to reduce, or lower the amount of things we throw away. Almost one-third of all the waste we make in the U.S. is from packaging. Can you think of any ways to use less packaging? For example, instead of buying small packages of snacks for your lunch, buy one large bag and divide it into smaller portions that you can carry in a reusable plastic container.
Here are some more ideas:
Use a refillable water bottle instead of buying individual plastic bottles of water.
Write or print on both sides of paper.
Put your sandwich in a reusable plastic container instead of using a plastic bag that gets thrown away.
Another easy way to cut down on the amount of garbage that you make is to find ways to use things more than once, or to reuse. For example, we often have clothing that is still good, but that we don't want to wear because it doesn't fit. Donating your used clothing so that it can be worn by other people is one way to reuse.
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