Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
8 Cards in this Set
- Front
- Back
Global warming |
Climate change: Crops may fail in some areas Extreme weather: Hurricanes Rising sea level: Melting ice caps and higher temperatures may cause sea levels to rise |
|
Radio waves |
Used for transmitting radio signals because they aren't absorbed by the atmosphere |
|
Micro waves |
Not absorbed by water so are used to heat objects with water in Not absorbed by the atmosphere so are used to carry TV signals |
|
Visible & infrared light |
They travel down optic fibres without becoming weaker so are used to carry information |
|
Xrays |
They are absorbed by dense materials so are used to produce shadow pictures if bones and see inside luggage at security checks |
|
The effect of ionising radiation on cells |
Suffer no damage Mutate and cause cancer Die leading to burns, sickness and even death |
|
The electromagnetic spectrum |
Radio Micro Infrared Visible Ultraviolet X-Ray Gamma |
|
Carbon cycle |
|