7.2.3 how materials are recycled Flashcards
1
Q
how are different materials recycled in a ecosystem
A
biotic and abiotic factors
2
Q
what is the carbon cycle
A
carbon dioxide taken in by pants, passed onto animals when eating the plant, returned into atmosphere through respiration and animals methane, animals die and they have carbon in the bones and made into fossil fuels and they are Burt and put back into atmosphere
3
Q
what is the water cycle
A
water enters atmosphere as vapour, warm air takes water up with it and it condenses to make clouds, returns to earth through precipitation