Grasslands: Characteristics and Formation
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Questions and Answers

What is the primary source of energy that sustains life on Earth?

  • The flow of energy from the Sun (correct)
  • Energy from the Earth's core
  • The cycling of nutrients within the biosphere
  • Gravity
  • What is the term used to describe the various types of soil and rocks on the Earth's surface?

  • Geosphere
  • Lithosphere (correct)
  • Hydrosphere
  • Biosphere
  • Which of the following is NOT a function of the atmosphere?

  • Producing food for living organisms (correct)
  • Regulating Earth's temperature
  • Providing oxygen for living beings
  • Creating suitable conditions for precipitation
  • What is the term used to describe the entire system of the Earth and its interconnected components?

    <p>Earth system</p> Signup and view all the answers

    What is the highest altitude up to which the atmosphere is considered to extend?

    <p>1500 km</p> Signup and view all the answers

    What is the role of dust particles in the atmosphere?

    <p>They create suitable conditions for precipitation</p> Signup and view all the answers

    What is the role of carnivorous animals in adjoining agricultural lands?

    <p>To control insect pests</p> Signup and view all the answers

    What is the basis used to divide the world's grasslands into two broad categories?

    <p>Climate</p> Signup and view all the answers

    How tall can the grass grow in tropical grasslands?

    <p>3 to 4 metres</p> Signup and view all the answers

    What type of animals are common in temperate grasslands?

    <p>Wild buffaloes, bison, and antelopes</p> Signup and view all the answers

    Where are grasslands found in India?

    <p>In village grazing grounds, extensive low pastures, and Alpine Himalayas</p> Signup and view all the answers

    What type of grasses are dominant in the Himalayan mountains?

    <p>Perennial grasses</p> Signup and view all the answers

    What is the primary reason for the absence of trees in grasslands?

    <p>The rainfall is not sufficient to support tree growth.</p> Signup and view all the answers

    What is the characteristic of the climate in areas where grasslands are found?

    <p>Hot and dry, warm and rainy seasons</p> Signup and view all the answers

    What is the role of grasslands in ecological succession?

    <p>Intermediate stage of ecological succession</p> Signup and view all the answers

    What is the common name for tropical grasslands?

    <p>Savannas</p> Signup and view all the answers

    What is the main characteristic of the Savannas ecosystem?

    <p>Scattered medium-size trees in grasslands</p> Signup and view all the answers

    What are the primary producers in a grassland ecosystem?

    <p>Grasses and a few herbs and shrubs</p> Signup and view all the answers

    What type of ecosystems do lakes and ponds represent?

    <p>Lentic ecosystems</p> Signup and view all the answers

    Which of the following species is typically found in lentic ecosystems?

    <p>Alligators</p> Signup and view all the answers

    What is the primary difference between marine and freshwater habitats?

    <p>Salt concentration</p> Signup and view all the answers

    What would happen to a marine species if placed in freshwater?

    <p>It would swell due to osmosis</p> Signup and view all the answers

    Which of the following ecosystems covers the majority of the earth's surface area?

    <p>Marine ecosystems</p> Signup and view all the answers

    What type of ecosystem is characterized by flowing water?

    <p>Lotic ecosystems</p> Signup and view all the answers

    What type of exoskeleton do hermatypic corals form?

    <p>Hard calcium carbonate</p> Signup and view all the answers

    What is the primary characteristic of soft reefs?

    <p>They are highly flexible</p> Signup and view all the answers

    What is the main purpose of coral reefs in terms of water?

    <p>To aid in the purification of water</p> Signup and view all the answers

    What is the name of the world's largest coral reef?

    <p>The Great Barrier Reef</p> Signup and view all the answers

    What is one of the functions of aquatic ecosystems in terms of groundwater?

    <p>To recharge the groundwater table</p> Signup and view all the answers

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