Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
A. Earthquakes
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
Pulley
Microscope
Thermemoter
Barometer
Argon
Vanadium
Iodine
Sulphur
Granulocyte
Neuron
Reticulocyte
Nephron
styrene
methane
ethylene
acetylene
an AND circuit
an OR circuit
a high-pass filter
a NOR circuit
evaporation
condensation
sublimation
deposition
Sulphonates
Zeolites
Nitrates
None of these
Calamine
Calcite
Galena
Bauxite
Orion
Terylene
Rayon
Nylon
Cat
Bear
Rabbit
Dog
It burns in air to form water
It supports combustion
It readily combines with fluorine and chlorine
It combines with almost all metals forming hydrides
Increases
Remains unaltered
Drops sharply
Decreases
Platinum
Quartz
gold
Diamond
Atomic number
Atomic mass
Quantum numbers
None of these
An atom
A cation
A molecule
An anion
Pyrex glass
Soft glass
Flint glass
Jena glass
Sodium
Cerium
Francium
Lithium
Desiccation
Efflorescence
Deliquescene
Osmosis
Amphibian
Shark
Bony fish
Mammal
Atomic warfare
Depletion of earth's ozone layer
CO2 from fossil fuels
Dust clouds from valcanoes
Adhesives
Detergents
Insecticides
Moth repellants
Quartz and mica
Sand and salt
Sand and silicates
None of these
Carbon
Hydrogen
Aluminium
Silicon
Conversion of nitrogen to nitric acid.
Production of nitrogen from air
Convert the atmospheric nitrogen to effective nitrogen compound.
Liquifaction of nitrogen
Uranium
Plutonium
Thorium
Zirconium
Potassium Permanganate
Bleaching Powder
Chlorine
Washing Soda
Silver
Magnesium
Platinium
Mercury
permeable
semipermeable
selectively permeable
impermeable
lion
man
jaguar
cheetah