Everything you do to protect the planet helps all living things, including humpbacks（座头鲸）and other species of whales that live in oceans worldwide. And yes－just one kid, like you, can make a difference. 【小题1】.

Don’t litter. Rubbish thrown away carelessly outside often washes into storm drains（排水沟）, which empty into rivers and eventually flow to the oceans. 【小题2】, including whales.

Say, “No bag, thank you.” Whether you’re buying toys, snacks, or clothes, tell the checkout person you don’t need a bag. 【小题3】, you’ll help reduce the 100 million plastic bags that each year block sewers（下水道）, and get swallowed by whales, sea turtles, and other wild life.

Plant a tree. 【小题4】. They produce oxygen and absorb carbon dioxide（二氧化碳）, a gas that animals, including humans, produce naturally as they breathe. But because carbon dioxide also comes from cars and factories, there is too much of it in the atmosphere, which is contributing to global warming. If everyone planted one tree, those trees would remove a large amount of carbon dioxide from the atmosphere.

【小题5】. Every time you leave a room for more than a minute, turn off the light you’re using. In this way, you save energy and keep greenhouse gases out of the atmosphere.

Try the family challenge! Many streams and rivers are polluted and littered with rubbish. You and your family can help preserve the waterways by joining others in your community to pick up rubbish.