Pollination by birds is called
autogamy
entomophily
anemophily
ornithophily
- Which of the following is the lightest metal ?
- Liquefied Petroleum gas (LPG) consists of mainly
- Water has maximum density at
- Polythene is industrially prepared by the polymerisation of
- The hardest substance available on earth is
- The colour of Emerald is
- The solar eclipse occurs when
- Which of the following elements is non-radioactive?
- The removal of top soil by water or wind is called
- The marine animal called dugong which is vulnerable to extinction is a/an
- Rust is
- Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
- In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- The formula of Plaster of Paris is
- Which of the following is commonly called a polyamide ?
- The property of a substance to absorb moisture from the air on exposure is called
- What is the unit for measuring the pitch or frequency of sound ?
- The Panda belongs to the same family as that of
- The recent atomic weight scale is based on
- Quartz crystals normally used in quartz clocks etc. is chemically
- Glass is made from the mixture of
- Which of the following elements is obtained from sea weeds ?
- The metal that is present in Photo Films is
- Brass gets discoloured in air due to the presence of which gas in air
- The most important ore of Aluminium is
- Earth's seasons are caused by which of the following?
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- The metallic constituents of hard water are
- The fastest acting enzyme in the biological kingdom is