The first synthetic fiber made by man was
1 Rayon
2 Nylon
3 Polyester
4 Terycott
Who is the second female cosmonaut?
What are vitamins ? describe different kinds of vitamins
what is the smallest fish?
Label the following types of erosion in order by their ability to transport materials. Wind erosion, water erosion, glacial erosion, plant/animal erosion.
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
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What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols
a private address 172.116.0.0 will borrow ? bits from the HOST to give one 120 subnets - range = ?
how the Adams bridge was formed?
Water is neither acidic nor alkaline because 1 It cannot accept or donate protons 2 It boils at a high temperature 3 It can dissociate into equal number of hydrogen ions 4 It cannot donate or accept electrons
which country is known as thunderbolt in the world
Why is it necessary to cook food ?