Why is china the world's main producer of rice?

The climate of China is just right for rice, meaning they can produce a lot at a time. This makes them the leader of rice production in the world.

Explanation:

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b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

the value of the 4 in the hundreds place is 400 while the value of th e 4 in the tens place is 40

400 is way bigger than 40.