Owners of cattle herds who only choose to breed cows that produce the most milk are engaging in blank selection

Ineed the answer to question 1 , i’m desperate

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is