Match each letter on the diagram with the appropriate term below.
a. A
6. B
d. D
26. oil
27. gas
28. water
29. barrier of impermeable rock

6because i no yea yea

12 is probably the typical age for a first kiss but i think its to young.

Conservation efforts have been effective in "increasing the number of endangered species, reducing all the negative impacts of human activity, and preserving wildlife habitats".hope my answer has you : ) 

It will be b hydrogen