How does volcanic activity affect climate? 1) gas and ash filter out solar radiation, causing the temperature to -increase -decrease - stay the same 2) water vapor and carbon dioxide are released into the atmosphere, causing the climate to get -warmer -cooler -drier

1- Decrease

2- Warmer

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.