Which of these natural phenomena is least likely to cause the formation of a large plain valley between two mountains, in a very short time? a) a volcanic eruption b) an earthquake c) a landslide d) a tornado

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?