Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
A. Earthquakes
Amphibian
Shark
Bony fish
Mammal
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
Argon
Vanadium
Iodine
Sulphur
amylase
lipase
carboxypeptidase
carbonic anhydrase
Atomic number
Atomic mass
Quantum numbers
None of these
It activate H2O molecule
Photo-electricity reaction starts
Some of the gas molecules become bigger
It cause combination of oxygen and nitrogen
Soil erosion
Soil wash
Silting of soil
Soil creep
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
A mixture of B and C
Silicon dioxide
Germenium dioxide
Sodium Silicate
Sulphonates
Zeolites
Nitrates
None of these
Calamine
Calcite
Galena
Bauxite
2CaSO4, H2O
CaSO4
CaSO4, 2H2O
2CaSO4, 4H2O
S
Ga
Se
I
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
Deep Green
Violet
Prussian Blue
Yellow
Carbon
Hydrogen
Aluminium
Silicon
0°C
-4°C
100°C
4°C
Coulomb
Hum
Cycles
Decible
Pulley
Microscope
Thermemoter
Barometer
Nucleic acid
Carbohydrate
Collagen
Polymer
Sodium
Cerium
Francium
Lithium
Silver
Magnesium
Platinium
Mercury
Magnetic forces
Gravitational forces
Coulombic forces
Exchange forces
Carbon dioxide
Hydrogen Sulphide
Oxygen
Nitrogen
A Black solid
A red liquid
A highly inflammable gas
colourless gas insoluble in water
core
photosphere
sunspots
corona
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
Cat
Bear
Rabbit
Dog
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
Adhesives
Detergents
Insecticides
Moth repellants