Ask mr Brain..all will be explained

How do earthworms move around? Earthworms are segmented worms. They have a fluid-filled body with two layers of muscles - an inner layer of longitudinal muscles, which run along the length of the body, and an outer layer of circular muscles, which run around the body.

Most of the earthworm's segments have four pairs of tiny, almost invisible bristles called setae. To move forward, the worm contracts its circular muscles and elongates its body. The tiny bristles extend from its front portion to anchor it to the soil. Then the worm contracts its longitudinal muscles to draw up the rest of its body behind the front section. Earthworms also have a mucous covering which helps it move and prevents it from drying out.

Do mobile phones cause cancer? There is still no evidence that mobile phones will give us cancer or other illnesses but a study showed that mobile phones do speed up our reactions.

Ionising radiation such as X-rays and gamma rays can break chemical bonds and damage DNA, thus triggering cancer. But microwaves do not have enough energy to have the same effect. Mobile phones has only a thousandth of the power of a microwave oven, so it cannot 'cook' your brain. If your ear becomes warm when you talk on a mobile phone, it's just the batteries and circuitry heating up - which happens even when you talk on a regular phone sometimes.

Scientists have different theories as to how mobile phones affect humans.

In Australia, doctors suspect mobile phones are behind a huge increase in brain tumours. A study showed that over the 10 years mo bile phones became popular, brain tumour cases soared by more than 60 per cent in women and by 50 per cent in men.