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A chemical used to kill bugs that harm plants or crops.
climate
pesticide
Something that has been made dirty or harmful, often by adding unwanted stuff.
hazardous
contaminated
To reduce to the smallest possible amount, extent, size, or degree.
minimize
extinct
A mix of organic stuff like leaves and kitchen scraps that turns into rich soil for plants.
compost
ecosystem
Something that could be dangerous or cause harm.
contaminated
hazardous
A person who cares a lot about nature and works to protect it.
environmentalist
naturalist
It's the usual weather in a place over a long time.
seasons
climate
All the plants, animals, and things in an area working together.
environment
ecosytem
When there are very few of a certain type of animal or plant left.
extinct
endangered
10. When something is extinct, it means there are no more of its kind alive anywhere in the world.
extinct
endangered
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