The Earth absorbs high-temperature solar radiation and re-radiates energy back into space. Greenhouse gases in the atmosphere absorb much of this outgoing radiation, trapping heat and warming the planet.
Which region of the electromagnetic spectrum is primarily absorbed by these greenhouse gases?
Ultraviolet
Visible light
Infrared
X-rays
100 exam-style questions on CIE IGCSE Physics 6.1 The Earth and the Solar System, covering 6.1.1a Rotation of the Earth, the seasons and the Moon, 6.1.1b Average orbital speed, 6.1.2a Contents of the Solar System, 6.1.2b Formation of the Solar System, 6.1.2c Gravitational field strength of a planet, and 6.1.2d Orbits and gravitational attraction. Each one has a worked solution and a mark scheme showing where the marks go.