Earth's Orbit and Seasons Quiz
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Questions and Answers

What is the time difference experienced at 180° longitude between the east and west of Greenwich?

  • 24 hours (correct)
  • 12 hours
  • 18 hours
  • 6 hours
  • Which imaginary line causes the time adjustment of one day when crossing from the west to the east?

  • Equator
  • International Date Line (correct)
  • Prime Meridian
  • Tropic of Cancer
  • What day would it be for those residing at place 'A' located at 180° longitude while it is Friday to the west of Greenwich?

  • Saturday (correct)
  • Sunday
  • Friday
  • Thursday
  • Which of the following continents will a traveler gain a day on entering after crossing the International Date Line from the east?

    <p>North America</p> Signup and view all the answers

    At what longitude is place 'A' located?

    <p>180°</p> Signup and view all the answers

    Which challenge arises from having two different days across the International Date Line?

    <p>Travel planning difficulties</p> Signup and view all the answers

    Which region experiences 12 noon when it is 9 am at 150° longitude west of Greenwich?

    <p>300° longitude</p> Signup and view all the answers

    Where does the International Date Line primarily pass through?

    <p>Pacific Ocean</p> Signup and view all the answers

    What are the dates of Perihelion and Aphelion?

    <p>January 3 and July 4</p> Signup and view all the answers

    What causes the seasons on Earth?

    <p>The tilt of Earth's axis</p> Signup and view all the answers

    Which of the following best describes the apparent movement of the Sun?

    <p>Movement is between the Tropic of Cancer and Tropic of Capricorn</p> Signup and view all the answers

    Why is the temperature higher where the Sun's rays fall vertically?

    <p>The rays are focused over a smaller area</p> Signup and view all the answers

    How are seasonal changes experienced differently in tropical regions compared to mid-latitudinal zones?

    <p>Tropical regions experience less variation in sunlight throughout the year</p> Signup and view all the answers

    Which zones do not experience all the seasons according to the content?

    <p>Frigid zones</p> Signup and view all the answers

    What results in seasonal variations as Earth revolves around the Sun?

    <p>Inclination of Earth’s axis and its parallelism</p> Signup and view all the answers

    In which hemisphere do the Sun's rays fall vertically during the first half of the year?

    <p>Northern Hemisphere</p> Signup and view all the answers

    What does 'Dakshinayanam' refer to in terms of the Sun's movement?

    <p>The southward movement of the Sun</p> Signup and view all the answers

    During 'Dakshinayanam', how does the duration of day change in the Southern Hemisphere?

    <p>Days are longer than nights</p> Signup and view all the answers

    What phenomenon occurs in the north polar regions from March to September?

    <p>Complete daytime for six months</p> Signup and view all the answers

    What happens in the south polar regions when the Sun is over the Northern Hemisphere?

    <p>Continuous night for six months</p> Signup and view all the answers

    What adjustment was suggested for the watches during the flight mentioned in the content?

    <p>Set back by five and a half hours</p> Signup and view all the answers

    What does the ‘midnight sun’ phenomenon refer to?

    <p>The Sun appearing at midnight</p> Signup and view all the answers

    Which of the following is true regarding the duration of day and night in the Southern Hemisphere?

    <p>There is a change in duration depending on the Sun's position</p> Signup and view all the answers

    What was indicated by the aircraft's movement towards the West during the flight?

    <p>It would gain time on the clock</p> Signup and view all the answers

    What is the primary characteristic of the Harmattan winds?

    <p>They are dry winds that improve humid conditions.</p> Signup and view all the answers

    What impact do Loo winds have on the North Indian plains?

    <p>They raise the summer temperatures.</p> Signup and view all the answers

    Which type of showers are referred to as Mango showers?

    <p>Winds that facilitate the ripening of mangoes.</p> Signup and view all the answers

    Cyclones are primarily created by which atmospheric condition?

    <p>Low atmospheric pressure surrounded by high pressure.</p> Signup and view all the answers

    How do winds in the Northern Hemisphere flow due to the Coriolis effect?

    <p>In an anti-clockwise direction.</p> Signup and view all the answers

    What type of cyclone caused significant damage during November 2017 in Kerala?

    <p>Tropical cyclone.</p> Signup and view all the answers

    What is a key factor in the classification of cyclones?

    <p>The climatic region of their formation.</p> Signup and view all the answers

    What is the effect of tropical cyclones like Ockhi on life and property?

    <p>They often lead to extensive damage and destruction.</p> Signup and view all the answers

    Which factor is NOT considered a qualitative aspect that improves labor potential?

    <p>Population increase</p> Signup and view all the answers

    How does education contribute to the development of human resources?

    <p>By providing skilled individuals</p> Signup and view all the answers

    What department was established by the Government of India for human resource development?

    <p>Ministry of Human Resource Development</p> Signup and view all the answers

    Which of the following is an advantage of developing human resources?

    <p>Improved entrepreneurship</p> Signup and view all the answers

    What is one result of improving the quality of human resources?

    <p>Enhancement in social welfare</p> Signup and view all the answers

    Which qualitative factor primarily focuses on improving labor's skill sets?

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

    What benefit does human resource development provide regarding technology?

    <p>Facilitates use of advanced technology</p> Signup and view all the answers

    What role does social capital play in improving labor potential?

    <p>Enhances community relationships and networks</p> Signup and view all the answers

    Study Notes

    Earth's Orbit and Seasons

    • The Earth is closest to the Sun on January 3rd, called Perihelion, at a distance of 147 million kilometers.
    • The Earth is farthest from the Sun on July 4th, called Aphelion, at a distance of 152 million kilometers.
    • The Earth's axis is tilted at an angle, causing the apparent movement of the Sun between the Tropic of Cancer (23.5° North) and the Tropic of Capricorn (23.5° South).
    • This apparent movement of the Sun results in the different seasons – Spring, Summer, Autumn, and Winter.
    • Seasons are less pronounced in tropical regions due to the high amount of sunlight throughout the year.
    • The southward apparent movement of the Sun from the Tropic of Cancer to the Tropic of Capricorn is known as 'Dakshinayanam'.
    • During 'Dakshinayanam', the Southern Hemisphere experiences longer days.
    • The North Pole experiences continuous daylight for six months when the Sun is in the Northern Hemisphere (March to September).
    • The North Pole experiences continuous darkness for six months when the Sun is in the Southern Hemisphere (September to March).

    Time Zones and International Date Line

    • The Earth rotates on its axis, resulting in day and night.
    • Time zones are based on the rotation of the Earth and the position of the Sun.
    • The International Date Line is an imaginary line that runs through the Pacific Ocean at 180° longitude.
    • Travelers crossing the International Date Line from west to east gain a day, while those crossing from east to west lose a day.

    Winds Around the World

    • Harmattan: A dry wind blowing from the Sahara Desert towards West Africa, bringing relief from humid conditions.
    • Loo: A hot wind blowing from the Rajasthan Desert towards the North Indian plains, increasing summer temperatures.
    • Mango Showers: Winds blowing in South India during the summer, causing mangoes to ripen and fall.

    Cyclones and Anticyclones

    • Variable winds are winds with different characteristics formed in specific atmospheric conditions.
    • Cyclones and anticyclones are examples of variable winds.
    • Cyclones are formed due to low atmospheric pressure at the center, surrounded by high pressure.
    • Strong winds blow towards the low-pressure center, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
    • Cyclones can be classified as tropical cyclones and temperate cyclones.
    • Anticyclones are characterized by high atmospheric pressure.

    Human Resources Development

    • Education: Plays a key role in developing skilled individuals, contributing to a nation's manpower.
    • Healthcare: Ensures the health and well-being of the population, contributing to productive workforce.
    • Training: Provides specialized skills and knowledge, enhancing productivity and promoting innovation.
    • Social Capital: Social cohesion and trust, fostering collaboration and efficiency.
    • Advantages of Human Resource Development:
      • Increased productivity of workers.
      • Reduced economic inequality.
      • Improved entrepreneurship.
      • Effective utilization of natural resources.
      • Enhanced social welfare.
      • Enables the development and use of advanced technology.
    • In India, the Ministry of Human Resource Development is responsible for human resource development initiatives, established in 1985.

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    Social Science 2 Class X PDF

    Description

    Test your knowledge about Earth's orbit around the Sun and how it affects the seasons. This quiz covers key concepts such as perihelion, aphelion, and the tilt of the Earth's axis. Understand the differences in seasons experienced in various regions of the world.

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