Please help? Waves:

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called
Choose one answer.
a.
reflection

b.
constructive interference

c.
the Doppler effect

d.
refraction

Question

Please help? Waves:

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called
Choose one answer.
	a.
reflection
	
	b.
constructive interference
	
	c.
the Doppler effect
	
	d.
refraction

anonymous · Answer

i think its d

anonymous · Answer

I think is b but I'm not quite sure I'm just starting with waves...