What causes sound? a.) vibrating molecules b.) waveforms c,) auditory nerves d.)vibrating protons

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. 2. which sentence in this passage introduces a new topic that might begin a new paragraph? a. sentence 5 b. sentence 4 c. sentence 7 d. sentence 6

You are conducting a significance test of h0: μ = 5 against ha: μ > 5. after checking the conditions are met from a simple random sample of 30 observations, you obtain t = 2.35. based on this result, describe the p-value. the p-value falls between 0.15 and 0.2. the p-value falls between 0.025 and 0.05. the p-value falls between 0.01 and 0.02. the p-value falls between 0.005 and 0.01. the p-value is less than 0.005.

Why is age an important determinant in decisions regarding migration? a.age influences the ability of migrants to adapt to new cultures. b.older migrants are more likely to move in search of work. c.age influences the likelihood that host nations will accept an immigrant. d.young adults are unlikely to move far from their families. e.older migrants are more likely to move far from their families.