Kit Library / Social Studies / Geography
⚡ Topic Learning KitEarth Systems
Shared by a Veda learner · Generated with Veda AI
What you'll study, topic by topic
Std 7 Geography: Seasons, Sun-Moon-Earth, Tides, Air Pressure, Winds & Natural Regions
~8 min · full explanation, examples & memory tricks in the app
Try the smart MCQs from this kit
26 questions laddered from warm-up to topper-level, each with an explanation. A taste:
The apparent north-south movement of the Sun in the sky is caused by:
BeginnerShow answer & explanation
The Earth's revolution around the Sun and the tilt of its axis
The Sun only appears to move north and south; this apparent movement is due to the Earth's revolution around the Sun combined with the tilt of the Earth's axis.
What is the imaginary circle that separates the illuminated (day) half of the Earth from the dark (night) half called?
BeginnerShow answer & explanation
Circle of Illumination
The Circle of Illumination is the imaginary great circle that divides the Earth into the lit hemisphere (day) and the dark hemisphere (night).
Days and nights are equal at the equinoxes because:
IntermediateShow answer & explanation
The Sun's rays fall perpendicularly on the equator
At the equinoxes, the Sun's rays fall perpendicularly on the equator, so the Circle of Illumination passes through the poles and both hemispheres receive equal sunlight — making day and night equal.
On June 21st, which hemisphere experiences the longest night?
IntermediateShow answer & explanation
Southern hemisphere
On June 21st the Northern hemisphere has its longest day (summer solstice), so the Southern hemisphere simultaneously has its longest night.
Study it properly — free, in the app
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.