Introduction:
Plants are autotrophic organisms that produce their food using light energy, water, and carbon dioxide. In this article, we will discuss how plants obtain water and carbon dioxide.

Obtaining Water:
Water is essential for plant growth and survival. Plants get water from the soil through their roots. The process of water absorption by roots is called osmosis. The following steps explain how plants obtain water:

- Roots absorb water from the soil through their root hairs.
- Water moves from the soil into the root cells due to the difference in water concentration between the soil and the root cells.
- The water travels through the root cells and into the xylem vessels.
- Xylem vessels are tubes that transport water and minerals from the roots to the leaves.
- The water is transported through the xylem vessels to the leaves where it is used in photosynthesis.

Obtaining Carbon Dioxide:
Carbon dioxide is a gas that plants need for photosynthesis. Plants get carbon dioxide from the air through tiny pores on their leaves called stomata. The following steps explain how plants obtain carbon dioxide:

- Carbon dioxide enters the plant through the stomata on the leaves.
- The carbon dioxide diffuses into the cells of the leaves where it is used in photosynthesis.
- During photosynthesis, the carbon dioxide is combined with water to make glucose (sugar) and oxygen.
- The oxygen is released into the air through the stomata.

Conclusion:
In conclusion, plants obtain water from the soil through their roots and carbon dioxide from the air through their stomata. These two substances are essential for photosynthesis, which is the process by which plants produce their food.

Plants get carbon dioxide from the air through their leaves. The carbon dioxide diffuses through small holes in the underside of the leaf called stomata. (One of these holes is called a stoma. The plural is stomata.)

Plants do not get the water that they need from the air around them. Instead:
Plants get the water they need through their roots.The roots have a type of cell called a root hair cell - these project out from the root into the soil. Roots have a big surface area and thin walls, which allow water to pass into them easily.