उस काल्पनिक रेखा/वृत्त को क्या नाम दिया गया है जो पृथ्वी को दो बराबर भागों में विभाजित करती है, जिसमें एक आधे भाग में दिन और दूसरे आधे भाग में रात का अनुभव होता है?

If the Earth's axis were not tilted, which of the following changes would most likely occur?

On 23rd September, at what angle do the Sun's rays fall on the Tropic of Capricorn?

Choose the statements which are correct about the Southern Hemisphere. (A) The longest day in the Southern Hemisphere is 21 June. (B) The shortest day in the Southern Hemisphere is 21 June. (C) Equal day and night (equinoxes) are experienced on 21 March and 23 September.