Get Started with ixamBee
Start learning 50% faster. Sign in now
• 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.
A race track is in the shape of a rectangle with length of 65 metres and area of 9750 m2. A car takes 10 seconds to make one lap around the p...
The lateral surface area of frustum of a right circular cone, if the area of its base is and the diameter of circular upper surface is 4 cm and slant he...
If the areas of three adjacent faces of a rectangular box which meet in a corner are 12cm2, 15cm2 and 20cm2 respective...
Each side of square ‘A’ is 7 cm less than that of square ‘B’. The perimeter of a rectangle is 5 times the difference of the perimeters of the tw...
The volume of a right circular cone is given as 1232 cm³, and its base area measures 154 cm². Determine the slant height of the cone.
A rectangular plot has an area of 490 m². If the length of the rectangular plot is 24.5 m. Find the perimeter of the rectangular plot.
In an equilateral triangle ABC, D is the midpoint of side BC. If the length of BC is 8 cm, then the height of the triangle is:
If the volume of a cylinder is 384π and the ratio of radius to its height is 4:3 then find the curved surface area of cylinder?
The perimeter of a rectangle is 110% more than perimeter of a square of side 20 cm. If the length of rectangle is 240% more than side of square then fin...
The diagonal of a square is √32 cm. What is the area of the square?
