Q.1

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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