Pollination by birds is called
autogamy
entomophily
anemophily
ornithophily
Correct Answer :
D. ornithophily
Related Questions
Nitrification means
Conversion of nitrogen to nitric acid.
Production of nitrogen from air
Convert the atmospheric nitrogen to effective nitrogen compound.
Liquifaction of nitrogen
Liquefied Petroleum gas (LPG) consists of mainly
Methane, Butane and Propane
Methane, Ethane and Hexane
Ethane, Hexane and Nonane
Methane, Hexane and Nonane
The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
Sulphonates
Zeolites
Nitrates
None of these
Old-written material, which cannot be read easily can be read by
None of these
Ultraviolet rays
Infra Red rays
Cosmic Rays
According to Daltons atomic theory the smallest particle which can exist independently is
An atom
A cation
A molecule
An anion
Apparatus invented by Archimedes is :
Pulley
Microscope
Thermemoter
Barometer
Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
A piece of iron that is not a permanent magnet
The north pole of another permanent magnet
A positively charged glass rod
A negatively charged rubber rod
Which of the following elements is non-radioactive?
Uranium
Plutonium
Thorium
Zirconium
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
Epoxy resins is used as
Adhesives
Detergents
Insecticides
Moth repellants
The solar eclipse occurs when
the sun comes in between the moon and the earth
the moon comes in between the sun and the earth
the earth comes in the between the sun and the moon
None of the above
Which of the following elements is a metal
S
Ga
Se
I
Which of the following elements is obtained from sea weeds ?
Argon
Vanadium
Iodine
Sulphur
When a gas is turned into a liquid, the process is called
evaporation
condensation
sublimation
deposition
The metal that is present in Photo Films is
Silver
Magnesium
Platinium
Mercury
Earth's seasons are caused by which of the following?
The varying amount of sunspot activity
The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun
The earth's orbit around the sun as an exlipse rather than a circle
The rotation of during a 24-hour day
Glass is made from the mixture of
Quartz and mica
Sand and salt
Sand and silicates
None of these
Cell membrane is
permeable
semipermeable
selectively permeable
impermeable
The element present in the largest amount in rocks and minerals is
Carbon
Hydrogen
Aluminium
Silicon
Which of the following is the lightest metal ?
Mercury
Lithium
Lead
Silver
The metallic constituents of hard water are
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
Brass gets discoloured in air due to the presence of which gas in air
Carbon dioxide
Hydrogen Sulphide
Oxygen
Nitrogen
Which of the following is commonly called a polyamide ?
Orion
Terylene
Rayon
Nylon
The major ingredient of leather is
Nucleic acid
Carbohydrate
Collagen
Polymer
Rust is
A mixture of FeO and Fe(OH)2
A mixture of Fe2O3 and Fe(OH)2
A mixture of Fe2O3, 3H2O and FeO
FeO only
The colour of Emerald is
Deep Green
Violet
Prussian Blue
Yellow
One fathom is equal to
6 feet
6 metres
60 cms
60 feet
The recent atomic weight scale is based on
1H1
1H2
6C12
8O16
The most important ore of Aluminium is
Calamine
Calcite
Galena
Bauxite