Why does Muir believe that the water from the Hetch Hetchy Valley is not pure?
It is full of Iron
It is full of mud
It is full of sewage
It is full of chlonne

Which of these can an adverbial clause modify?

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. which statement about this paragraph is accurate?

There are six red marbles 4 blue marbles and 15 green marbles in a jar if you reach in and randomly draw one what is the probability that it will choose a red marble