Answer the following questions briefly.
(a) What is the angle of inclination of the earth’s axis with its orbital plane?
(b) Define rotation and revolution.
(c) What is a leap year?
(d) Differentiate between the Summer and Winter Solstice.
(e) What is an equinox?
(f) Why does the Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere?
(g) Why do the poles experience about six months day and six months night?
(a) The angle of inclination of the Earth’s axis with its orbital plane is 66 ½◦.
(b) Rotation:
Revolution:
(c) A year with 366 days is called leap year. It occurs once in four years on the month of February and it is 29th day of that month. It is also called intercalary year. The Earth do not take exact 365 days in an year and 24 hours in a day, so we add them as one extra day once in four year.
(d) Differences between summer and winter solstice are as follows:
|
Summer Solstice |
Winter Solstice |
|
Summer solstice occurs on 21st June in Northern Hemisphere. |
Winter Solstice occurs on 22nd December in Southern Hemisphere. |
|
The Northern Hemisphere experiences more heat and light. |
Southern Hemisphere experiences less heat and light. |
|
It is summer in Northern Hemisphere. |
It is winter in Southern Hemisphere. |
|
Days are longer and nights are shorter. |
Nights are longer and days are shorter. |
(e) On 23rd September and 21st March, the rays of sun directly falls on the equator. So, at that position neither of the poles are tilted. So at that specific or we can say a particular day the earth experiences equal days and nights and this is called as equinox.
(f) The Southern Hemisphere experience winter and summers solstice in different times than that of the Northern Hemisphere because:
(g) The poles experiences about six months day and six months night because:
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
This question is important because it tests key concepts from the NCERT syllabus and is frequently asked in CBSE exams.
This question is based on core NCERT concepts explained in the chapter and should be revised thoroughly before exams.
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
(a) The angle of inclination of the Earth’s axis with its orbital plane is 66 ½◦.
(b) Rotation:
The movement of the Earth on its axis is called rotation.
The Earth takes 24 hours to complete...
Step-by-step explanation:
• (a) The angle of inclination of the Earth’s axis with its orbital plane is 66 ½◦
•
•
• (b) Rotation:
•
Stay updated with our latest educational content and study tips
Thirty is when the question starts to get raised and you’re able to do something because you know you have the experience—you know you have the responsibility. Here are some ways to consider the choice based on a realistic assessment without idealizing either aspect. Restlessness is one of those things that appears in your early … Read more
Read More
It’s not about starting over if you took a break to care for children, take care of yourself, be healthy or for any other reason. This is a realistic strategy for the recovery of skills, selection of the right job, and overcoming the resume problem. One year, three years or 10 years of a career … Read more
Read More
There’s no need to score 95% or achieve a JEE/NEET rank. You don’t need to score 95% or rank in JEE/NEET to build a solid career. A candid and pragmatic guide to the routes that actually work for students who have an average mark and what to do when faced with the options. If … Read more
Read More
AI tools, online platforms that are much cheaper than coaching centres and the changing idea of what “structure” even means have upended this argument more in the past two years than in the decade preceding it. Here’s what is really the case for 2026 – and what has actually stayed the same. If you look … Read more
Read More
Student Discussion
Be the first to comment.
ADD NEW COMMENT