Q5.
List any two ways in which you think the government affects your daily life.
(2)
06
Differentiate between Summer Solstice'& 'Winter Solstice'
(3)
Answers
Effects of Motions of Earth
Explanation:
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1. Introduction
What will I learn in this lesson?
Objective
2. Key Concepts
Introduction
Effects of Motions of Earth
3. Quiz
motions of the earth
4. Did You Know?
Nutation
The analemma for the Sun has different shapes on each of the 8 planets.
Earth lies within the "Goldilocks/Habitable zone"
When the Earth is closest to the Sun, it is said to be at perihelion.
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Chapter 3: Motions of the Earth
The Earth: Our Habitat
Effects of Motions of Earth
A year is mainly divided into four seasons - winter, spring, summer and autumn. These seasons are experienced due to change in the position of Earth around the sun. Positions of the Earth change around sun because of its revolutions and tilts.
Hence, as the Earth revolves around the sun through out the year, different parts receive varied amounts of heat. The part (pole) which is more tilted towards the sun experiences longer days and hotter climate during that period. As different parts of Earth are tilted towards the sun throughout the year while revolution, solstices and equinoxes are experienced.
Solstice:
Two solstices occur in a year. During solstices, sun rays fall directly on either of the tropics.
Summer Solstice:
Every year on 21st June, Northern Hemisphere is tilted towards the sun. As a result, Tropic of Cancer receives direct sunlight and areas beyond the Arctic circle till the pole experience continuous day light for 6 months. This means, it's summer time in the Northern Hemisphere at this period of time. Places in Northern Hemisphere experience longer days and shorter nights. The Southern Hemisphere experiences the exact reverse conditions. It is winter there, the days are shorter and the nights are longer
Winter solstice:
Winter solstice occurs on 22nd December every year. The Southern Hemisphere is tilted towards the sun. Thus, this hemisphere experiences summer. The Tropic of Capricorn receives direct sun rays due to which the days are longer and the nights are shorter in this area. The areas beyond the Antarctic circle experience continuous light for 6 months as it is inclined towards the sun. The conditions are exact opposite in the Northern Hemisphere.