Facts of plants and trees

All animals depend on plants for their food either directly or indirect!ly. Let us know about plants in a general way.

Plants breath like other living things. They take in oxygen and give out carbon dioxide.
Plants suck water from the soil through roots. They expel excess water through stoma.

There is intense competition among plants for nutrition, sunlight, etc., which are necessary for their healthy growth.
Plants which do not have wood stems live for some months only, eg. rice, wheat etc.
Some trees like the giant sequoia, chestnut etc. live for thousands of years, Among trees, the sequoia grows tallest.
The rattan plant, a climber, grows upto 600 feet. It stores a lot of water in its stem.
The red lichen grows at the highest altitude. It is found at an altitude of 21,600 feet K2 mountain (Himalayas).