"Dad, why is there so much dust on the balcony?"
"Maybe it was the dust storm last night," said the lazy father Then he went to sleep again.
"Why are there sandstorms?" I thought, "there's a way."
I turned on the computer to check, the computer said: "this is due to human deforestation, destruction of grasslands, land desertification caused."
After listening to the computer, I think: human beings should take good care of flowers, grass and trees, plant flowers, grass and trees, and protect the environment. The terrible sandstorm will not come again.