For example, compare the numbers. Thank you! !

Take the Yangtze River as an example. Its water contains a lot of sediment, so it is yellow.

Photo: Scientists have proved that there is no planet suitable for human habitation at least within 40 trillion kilometers centered on the earth.

Comparison: The earth is big, but compared with the sun, it is too small.

For example: for example, a kitten is born from its mother's stomach, and so are you.