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9251.

The disposal of wastes produced in a nuclear power plant poses a big problem because it is :

Answer»

too heavy
HIGHLY inflammable
extremely FOUL SMELLING
highly radioactive

Answer :D
Discussion
9252.

A particle is in clockwise uniform circular motion the direction of its acceleration is radially inward. If sense of rotation of particle is anticlockwise then whatis the direction of its acceleration ?

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SOLUTION :RADIAL INWARD.
Discussion
9253.

What are the different method of contraception?

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SOLUTION :Contraceptive method can be bordly divided into the following types :
Natural method : It involves avoiding the chances of meeting of sperms and ovum. In this method, the sexual act is avoided from 10th to 17th of the menstrual CYCLE because during this epriod, ovulation is expected and therefore the chance of fertilization are very high.
* BARRIER method : In this method, the fertilization of ovum and sperms is PREVENTED with the help of barriers. Barriers are available for both males and females. Condoms are barriers made of thin rubber that are used to cover penis in male and vagina in females.
* Oral contraceptives : In this method tablets or drugs are taken orally. They contain small doses of harmones that prevent the release of eggs and thus fertilization cannot occur.
* Implants and surgical methods : Contraceptive devices such as the loop or COPPER - T are placed in uterus to prevent pregnancy. Some surgical methods can also be used to block the gamete transfer to prevent the transfer of sperms known as vastectomy. Similarly, fallopian tubes of the female can be blocked so that egg will not reach the uterus known as tubectomy.
Discussion