Earthworms cannot stand dry conditions in the soil: their bodies must always be in contact with damp earth and even a few minutes’ exposure to the sunlight makes them dry up and die.
Earthworms spend most of their lives digging tunnels in the soil. It is quite surprising how they can burrow their way into even hard ground simply by using the strength of their muscles, for earthworms do not have any special physical equipment for digging.
They contract and expand in a rhythmic manner to force an aperture in the ground and then they push on with their head.
The earthworm swallows some of the soil he moves through. From it, the animal extracts food in the form of vegetable waste. The earthworm then expels the ‘digested’ soil and leaves it as a worm-cast. It has been estimated that the yearly deposition above ground of soil by earthworms is between 7 and 1 6 tons per acre in England.
Earthworms can grow up to 1 5 centimetres or more in length. In tropical countries some earthworms are as long as 2 metres.
Indian senior citizen’s award for social courage, scheduled to be organized on 1 October 2013 in New Delhi, will honor the elders for their contribution in social sector More >>
Indian senior citizen’s award for social courage, scheduled to be organized on 1 October 2013 in New Delhi, will honor the elders for their contribution in social sector. The application forms for nomination to this prize are available on organization’s website. More >>
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Indore, 1 February 2013: When the youth of the nation is busy in preparing for upcoming valentine day, the elders of society are not far behind in showing their concern for the society. Being Responsible organized a discussion on how to make youth aware about their safety and encourage them to cele More >>
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