Besides the ocean where else is water on Earth? Is it always in liquid form?

water is everywhere, its in the air and the clouds, in the earth too!

it isnt always liquid form. like when it snows or hails.

Explanation:

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.