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• 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.
______ test is used to see significant difference between the treatment means.
Which process occurs in the mesophyll cells of C4 plants during the Hatch-Slack cycle?
Food Safety Display boards are colour coded for different kinds of food businesses. Which of the following business is NOT matched with the colour code?
Which insects do not belong to the order Diptera?
Tensiometer is suitable for which type of soil?
Mega Plantation Drive for Oil Palm Cultivation under National Mission for Edible Oils- Oil Palm, is being organized during month of July and Aug 2023 ac...
Which of the following is an advantage of food processing?
Match the following plant hormones with their respective functions:
What is the subsidy for 15 hp mb plough for SC/ST women according to NABARD
How much concentrate is fed to Cross bred exotic 5 months pregnant cattle other than maintenance?