The arrangement of leaves on an axis or stem is called
Phyllotaxy
vernation
venation
phytotaxy
Q.2.
All of the following are true about ecosystems except
they represent the lowest level of biological organization that is known
there is a transfer of energy through the system and it is lost
the ultimate source of energy is the sun for nearly all known ecosystems
they contain both living and nonliving components
Q.3.
A ________________ is known by different names in different parts of the world. It is called a ‘hurricane’ in North America.
funnel
whirlpool
cyclone
twister
Q.4.
Which is the closest star to our solar system?
Alpha Centauri
Beta Centauri
Proxima Centauri
Barnard
Q.5.
What is the process of waste water treatment is commonly known?
Waste water management
Cleaning of water
Sewage treatment
Decontamination
Q.6.
One of the best solutions to get rid of nonbiodegradable waste is
Burning
Dumping
Burying
Recycling
Q.7.
The source of energy in an ecosystem is
Sugar produced in photosynthesis
ATP
Green plants
Sun
Q.8.
Which of the following is a wind based Indian musical instrument?
Taus
Swarmandal
Samvadini
Rabab
Q.9.
Biofortification is a ________________ .
method of breeding crops to increase their nutritional value
strategy to combat unwanted nutrients in plants
method of developing resistance to insect pests
method of plant breeding for disease resistance
Q.10.
Marble is a metamorphic rock of _______.
Sandstone
Limestone
Granite
Clay
Q.11.
BrahMos Aerospace is a joint venture company set up by Russia's Mashinostroyeniya and which other company of India?
ISRO
HAL
BHEL
DRDO
Q.12.
Which layer of earth is liquid?
inner core
outer mantle
outer core
crust
Q.13.
What is the mean temperature of Earth?
6 degree Celsius
16 degree Celsius
26 degree Celsius
36 degree Celsius
Q.14.
Which of the following represents the most complex trophic level?
Community
Population
Ecosystem
Species
Q.15.
Chlorophyll was first isolated and named by
Caventou
Pelletier
Chlorophyll
Caventou and Pelletier
Q.16.
Green House Effect' means
Pollution in houses in tropical region
Prevention of ultraviolet radiation by the ozone layer
Trapping of solar energy due to atmospheric gases
Damage to green painted buildings
Q.17.
Earth revolves around Sun. Who was the 1st one to present this theory?
Albert Einstein
Galileo
Copernicus
Newton
Q.18.
A __________ thread is actually stronger than a steel wire.
wool
cotton
jute
nylon
Q.19.
ABM stands for ______.
Anti Belligerent Mine
Anti Base Machine
Anti Body Mechanics
Anti Ballistic Missile
Q.20.
The outermost layer of Earth is called _______.
Sphere
Crust
Mantle
Core
Q.21.
Which one of the following bio reserves of India is not included in the World Network of Biosphere Reserve?
Sunderbans
Gulf of Mannar
Nandadevi
Corbett
Q.22.
Which among the following is the major cause of acid rain?
Carbon dioxide
Carbon monoxide
Nitrogen dioxide
Oxygen
Q.23.
Which of the following is the treatment of water pollution?
Bag house filter
Windrow composting
Venturi scrubber
Reverse Osmosis
Q.24.
Which of the following is natural fiber?
Silk
Rayon
Nylon
Polyester
Q.25.
Pollination by wind is called?
Hydrophily
Pollinophily
Anemophily
Herbophily
Q.26.
India's famous Mars Mission was called?
BRO
SIS
MOM
DAD
Q.27.
The warm and cold ocean currents are caused by
Prevailing winds
Earth's rotation
Variations in density of sea water
All of these
Q.28.
The phenomena of raising the outer edge of the curved roads above the inner edge to provide necessary centripetal force to the vehicles to take a safe turn is called _____.
banking of roads
cornering of roads
elevation of roads
tempering of roads
Q.29.
Using which of the following processes can one separate a solute from its solution?
Sedimentation
Evaporation
Filtration
Condensation
Q.30.
Which of the following is NOT an effect of Noise Pollution?
Death of Animals
Tinnitus
Hypertension
Ozone Depletion
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