Podcast
Questions and Answers
What is the time difference experienced at 180° longitude between the east and west of Greenwich?
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?
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?
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?
Which of the following continents will a traveler gain a day on entering after crossing the International Date Line from the east?
At what longitude is place 'A' located?
At what longitude is place 'A' located?
Which challenge arises from having two different days across the International Date Line?
Which challenge arises from having two different days across the International Date Line?
Which region experiences 12 noon when it is 9 am at 150° longitude west of Greenwich?
Which region experiences 12 noon when it is 9 am at 150° longitude west of Greenwich?
Where does the International Date Line primarily pass through?
Where does the International Date Line primarily pass through?
What are the dates of Perihelion and Aphelion?
What are the dates of Perihelion and Aphelion?
What causes the seasons on Earth?
What causes the seasons on Earth?
Which of the following best describes the apparent movement of the Sun?
Which of the following best describes the apparent movement of the Sun?
Why is the temperature higher where the Sun's rays fall vertically?
Why is the temperature higher where the Sun's rays fall vertically?
How are seasonal changes experienced differently in tropical regions compared to mid-latitudinal zones?
How are seasonal changes experienced differently in tropical regions compared to mid-latitudinal zones?
Which zones do not experience all the seasons according to the content?
Which zones do not experience all the seasons according to the content?
What results in seasonal variations as Earth revolves around the Sun?
What results in seasonal variations as Earth revolves around the Sun?
In which hemisphere do the Sun's rays fall vertically during the first half of the year?
In which hemisphere do the Sun's rays fall vertically during the first half of the year?
What does 'Dakshinayanam' refer to in terms of the Sun's movement?
What does 'Dakshinayanam' refer to in terms of the Sun's movement?
During 'Dakshinayanam', how does the duration of day change in the Southern Hemisphere?
During 'Dakshinayanam', how does the duration of day change in the Southern Hemisphere?
What phenomenon occurs in the north polar regions from March to September?
What phenomenon occurs in the north polar regions from March to September?
What happens in the south polar regions when the Sun is over the Northern Hemisphere?
What happens in the south polar regions when the Sun is over the Northern Hemisphere?
What adjustment was suggested for the watches during the flight mentioned in the content?
What adjustment was suggested for the watches during the flight mentioned in the content?
What does the ‘midnight sun’ phenomenon refer to?
What does the ‘midnight sun’ phenomenon refer to?
Which of the following is true regarding the duration of day and night in the Southern Hemisphere?
Which of the following is true regarding the duration of day and night in the Southern Hemisphere?
What was indicated by the aircraft's movement towards the West during the flight?
What was indicated by the aircraft's movement towards the West during the flight?
What is the primary characteristic of the Harmattan winds?
What is the primary characteristic of the Harmattan winds?
What impact do Loo winds have on the North Indian plains?
What impact do Loo winds have on the North Indian plains?
Which type of showers are referred to as Mango showers?
Which type of showers are referred to as Mango showers?
Cyclones are primarily created by which atmospheric condition?
Cyclones are primarily created by which atmospheric condition?
How do winds in the Northern Hemisphere flow due to the Coriolis effect?
How do winds in the Northern Hemisphere flow due to the Coriolis effect?
What type of cyclone caused significant damage during November 2017 in Kerala?
What type of cyclone caused significant damage during November 2017 in Kerala?
What is a key factor in the classification of cyclones?
What is a key factor in the classification of cyclones?
What is the effect of tropical cyclones like Ockhi on life and property?
What is the effect of tropical cyclones like Ockhi on life and property?
Which factor is NOT considered a qualitative aspect that improves labor potential?
Which factor is NOT considered a qualitative aspect that improves labor potential?
How does education contribute to the development of human resources?
How does education contribute to the development of human resources?
What department was established by the Government of India for human resource development?
What department was established by the Government of India for human resource development?
Which of the following is an advantage of developing human resources?
Which of the following is an advantage of developing human resources?
What is one result of improving the quality of human resources?
What is one result of improving the quality of human resources?
Which qualitative factor primarily focuses on improving labor's skill sets?
Which qualitative factor primarily focuses on improving labor's skill sets?
What benefit does human resource development provide regarding technology?
What benefit does human resource development provide regarding technology?
What role does social capital play in improving labor potential?
What role does social capital play in improving labor potential?
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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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