Which of these is a good example of newton's first law of inertia

a)
a ball sits motionless on the ground

b)
a ball gathers speed as it rolls downhill
eliminate

c)
a ball accelerates as it falls out of the classroom window

d)
a ball returns to your hand after you throw it up in the air

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Explain how organisms could be harmed by high levels of salt from roadways?

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?