Select the correct coefficient ratio that balances the following chemical equation P4 + 02 ---> P205
A-1:4 --> 1
C-2:1 - 2
C-1:5 -> 2
D-8:8->1

Explanation:

look it up

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

geologic time scale (for gradpoint) =)