All objects are continually absorbing and emitting infrared radiation, which is essential for life on Earth.
Which word describes the process of giving out radiation?
Which word describes the process of taking in radiation?
Which colour is the best absorber of radiation?
Which colour is the worst absorber?
Which colour is the worst emitter?
What happens to the planet's internal energy when it absorbs high frequency infrared radiation and light?
Internal energy stays the same
Internal energy decreases
Internal energy increases
What happens to the temperature of a body that absorbs infrared radiation faster than it emits?
It remains constant
What happens to the temperature of a body that absorbs and emits infrared radiation at the same rate?
What is one piece of evidence that supports the view that human activity is to blame for global warming?
The Earth’s temperature has always fluctuated
Agreement amongst the scientific community
Computer climate models
What gases in the atmosphere change the balance of infrared radiation absorbed and emitted by the Earth?