• Placer deposits are formed by the concentration of a particular metal or mineral over a period of time. • The river while flowing through the rocks extract the minerals from there and they are deposited downstream under the influence of gravity. • These deposits are a result of depositions made by water, therefore placer deposits are found in or near subaqueous environments. • They are found in or near water bodies also in the sands of ancient river channels, dried valleys, beaches and coasts. • Generally, the inert metal like Gold and Platinum forms these kinds of deposits. • The reaction resistant ores like magnetite, monazite, zircon and rutile are also found in placer deposits. • The coastal plains of Alaska, India, NewZealand, Indonesia and South Africa are rich in placer deposits.
Three of the four words are alike in a certain way and one is different. Pick the odd one out.
Find the odd one out of the choices given therein.
In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) wi...
Select the letter cluster which does not belong to the same group from the given alternatives.
In the following question, select the odd word from the given alternatives.
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Four number pair have been given, out of which three are alike in a certain way and one is different. Select the one that is different. (NOTE: Operation...
Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent dig...
Select the set in which the numbers are related in the same way as are the numbers of the following set .
( NOTE: Operations should be performe...
In the following questions, a group of four figures is given, Out of which four figures are similar to each other in a certain way and one is different ...