The removal of top soil by water or wind is called
Soil erosion
Soil wash
Silting of soil
Soil creep
- The element present in the largest amount in rocks and minerals is
- Nitrification means
- Which of the following elements is non-radioactive?
- Brass gets discoloured in air due to the presence of which gas in air
- According to Daltons atomic theory the smallest particle which can exist independently is
- Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
- The hardest substance available on earth is
- When a gas is turned into a liquid, the process is called
- Which of the following is commonly called a polyamide ?
- Liquefied Petroleum gas (LPG) consists of mainly
- Epoxy resins is used as
- The fastest acting enzyme in the biological kingdom is
- Rust is
- Old-written material, which cannot be read easily can be read by
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- The type of glass used in making prisms and lenses is
- The speed of light with the rise in the temperature of the medium
- The colour of Emerald is
- Lightening cause rainfall because
- Water has maximum density at
- Glass is made from the mixture of
- In an atomic nucleus, neutrons and protons are held together by
- The oxide of Nitrogen used in medicine as anaesthetic is
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- The major ingredient of leather is
- Polythene is industrially prepared by the polymerisation of
- The recent atomic weight scale is based on
- The removal of top soil by water or wind is called
- Quartz crystals normally used in quartz clocks etc. is chemically
- Which of the following elements is a metal