• 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.
The reaction between Amino acid and reducing sugar is known as:
Plant available potassium refers to:
Calculate the seed rate (kg/ha) of wheat, if crop is sown at spacing of 18 cm×3 cm and rest weight of seed is 44 gram
Oxymyoglobin has a color of
Match List I with List II
Book Author
A. Fundamentals of Horticulture I. B. S. Chudawat
B. Fruit Breeding ...
Stocking of fishes of different habits, in same pond is known as:
Which of the following hormones is used as a herbicide?
The assessment of nutrient supply capacity is called as soil
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Median is the selection...
Globally India has been ranked ____ in terms of Oilseeds production