Question

ぼう。

それぞれに入る前置詞を教えてください。
Fog is cloud that forms ........... the ground.

Glass is fragile and breakable. If glass bottle dropped ........ a hard surface is likely to break.

Granite is hard and shiny rock. It is made ..... several kinds of metals.

Calcium is a silvery metal. It is found ......limestone, marble, and chalk.

Vitamin A is essential ....... a healthy diet.