Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere in future?
Atomic warfare
Depletion of earth's ozone layer
CO2 from fossil fuels
Dust clouds from valcanoes
- The metallic constituents of hard water are
- Water has maximum density at
- Glass is made from the mixture of
- Nitrification means
- Rust is
- Which of the following is in liquid form at room temperature ?
- The formula of Plaster of Paris is
- Old-written material, which cannot be read easily can be read by
- Which of the following characters is not shown by hydrogen
- The removal of top soil by water or wind is called
- Quartz crystals normally used in quartz clocks etc. is chemically
- The marine animal called dugong which is vulnerable to extinction is a/an
- Permanent hardness of water can be removed by adding
- According to Daltons atomic theory the smallest particle which can exist independently is
- The element present in the largest amount in rocks and minerals is
- The solar eclipse occurs when
- Which of the following elements is a metal
- Cell membrane is
- Epoxy resins is used as
- Which of the following elements is obtained from sea weeds ?
- The recent atomic weight scale is based on
- The intencity of Earthquakes is measured on
- Pollination by birds is called
- The major ingredient of leather is
- The hardest substance available on earth is
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- The location and energy of an electron in an atom can be specified by
- Brass gets discoloured in air due to the presence of which gas in air
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- Which of the following is the lightest metal ?