PHYSICS 10 SCIENCE · 2026–27 · From the chapter · exam-style questions · p. 188

Practice question from chapter text

Why can Venus be hotter than Earth despite distance not being the only factor?

فاصلہ واحد عامل نہ ہونے کی وجہ سے زہرہ زمین سے زیادہ گرم کیوں ہے؟

Solution & explanation

Orbital distance determines incoming solar flux, but albedo and atmospheric infrared properties determine how energy is absorbed and lost. Venus has a dense greenhouse atmosphere. Therefore comparing distance alone cannot rank every actual planetary surface temperature.

Independent study material · English-medium textbook p. 188 · Original book ↗