Life On Planet Earth Flashcards
(5 cards)
1
Q
Atmosphere
A
A thin layer of gas held to the surface by the gravitational force. Contains 78% nitrogen, 21% oxygen and less than 1% argon, water vapour, carbon dioxide and other gases
2
Q
Lithosphere
A
The rocky outer shell of the earth that is made of rocks and minerals
3
Q
Hydrosphere
A
all of the water on, above and below the earth’s surface
4
Q
Biosphere
A
Zone around the earth’s where life exists
5
Q
Habitat
A
A place where an organism lives
