Introduction

Agriculture is the science, which mainly deals with the diverse processes or the methods used for the cultivating different varieties of plants and livestock farming or animal husbandry on the basis of human requirements. The entire world ia depends on agriculture for its food. Therefore, it is very important to produce and store the harvested crops carefully.

What do Animals Eat?

All animals need food to survive. Animals eat many different kinds of foods including other animals, fish, nuts and seeds, tree leaves and branches, insects, and grass.There are three categories on basis of which animals are divided for their food.

Animals that eat only plants are called herbivores. Most herbivores, including the giraffe, macaw, ground squirrel, and elephant.

Animals that eat only other animals are called carnivores. Polar bears, sharks, woodpeckers, and anteaters are all examples of carnivores.

Omnivores eat both plants and animals. A typical grizzly bear, for example, will eat just about anything it can catch and get its mouth around. Grizzlies are known to kill their own food, including deer, but will also scavenge the carcasses of dead animals. They also eat fish, amphibians, small mammals, insects, berries and tree buds.

Food Materials and Sources

Plants are usually grouped into herbs, shrubs, trees, and climbers based on their height, stems and branches.

  • Herbs are small plant which have soft stem.
  • Shrubs are bushy and medium sized plants and they are somewhat bigger than herbs. Their branches start from just above the ground.
  • Trees are tall and large plants with hard and woody stem. 
  • Plants with weak stem that cannot stand upright and spread on the ground are called creepers.

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