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
Correct Answer :
B. The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun
Related Questions
Brass gets discoloured in air due to the presence of which gas in air
Carbon dioxide
Hydrogen Sulphide
Oxygen
Nitrogen
Glass is made from the mixture of
Quartz and mica
Sand and salt
Sand and silicates
None of these
The colour of Emerald is
Deep Green
Violet
Prussian Blue
Yellow
The hardest substance available on earth is
Platinum
Quartz
gold
Diamond
One fathom is equal to
6 feet
6 metres
60 cms
60 feet
Which of the following is in liquid form at room temperature ?
Sodium
Cerium
Francium
Lithium
The formula of Plaster of Paris is
2CaSO4, H2O
CaSO4
CaSO4, 2H2O
2CaSO4, 4H2O
The metal that is present in Photo Films is
Silver
Magnesium
Platinium
Mercury
The marine animal called dugong which is vulnerable to extinction is a/an
Amphibian
Shark
Bony fish
Mammal
According to Daltons atomic theory the smallest particle which can exist independently is
An atom
A cation
A molecule
An anion
The oxide of Nitrogen used in medicine as anaesthetic is
Nitric oxide
Nitrogen dioxide
Nitrogen pentoxide
Nitrous oxide
The chemial name of Uria is
Carbamide
Chloroetane
Aneurin
None of these
The metallic constituents of hard water are
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
The metal used in storage batteries
Zinc
Iron
Copper
Lead
The element present in the largest amount in rocks and minerals is
Carbon
Hydrogen
Aluminium
Silicon
Cell membrane is
permeable
semipermeable
selectively permeable
impermeable
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
The intencity of Earthquakes is measured on
Beaufort scale
Secant scale
Mercalli scale
Richter scale
Which of the following elements is non-radioactive?
Uranium
Plutonium
Thorium
Zirconium
In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If both inputs are positive the output is zero. This is
an AND circuit
an OR circuit
a high-pass filter
a NOR circuit
Bromine is
A Black solid
A red liquid
A highly inflammable gas
colourless gas insoluble in water
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
What is the unit for measuring the pitch or frequency of sound ?
Coulomb
Hum
Cycles
Decible
In an atomic nucleus, neutrons and protons are held together by
Magnetic forces
Gravitational forces
Coulombic forces
Exchange forces
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
Nitrification means
Conversion of nitrogen to nitric acid.
Production of nitrogen from air
Convert the atmospheric nitrogen to effective nitrogen compound.
Liquifaction of nitrogen
Polythene is industrially prepared by the polymerisation of
styrene
methane
ethylene
acetylene
The recent atomic weight scale is based on
1H1
1H2
6C12
8O16
The fastest acting enzyme in the biological kingdom is
amylase
lipase
carboxypeptidase
carbonic anhydrase
The major ingredient of leather is
Nucleic acid
Carbohydrate
Collagen
Polymer