Question

Question 5

                 Which of the following can influence whether a shoreline gains or loses sand with time?

		A. the amount of sediment in rivers
		B. a longshore current
		C. manmade features built along the beach or into the water
		D. all of the choices

          Question 6

What happens when a glacier encounters the sea or a lake?

		A. the ice is more dense than water and so scrapes along the bottom
		B. white icebergs float but blue icebergs sink to the bottom
		C. large blocks of ice collapse off the front of the glacier and become icebergs
		D. rocks released from melted icebergs float on the water surface
		E. all of the choices

Question 7

________ tides are produced when the sun and moon are aligned and there is maximum difference between high and low tides.

		A. spring tides
		B. rip tides
		C. surf tides
		D. neap tides

Question 8

The area of a glacier where snow accumulates faster than it can melt is the

		A. zone of sublimation
		B. zone of accumulation
		C. zone of calving
		D. zone of ablation

Question 9

          ___________________ is measured from one wave crest to the next

		A. wave height
		B. wave period
		C. wave base
		D. wavelength

Question 10

Which of the following is NOT a way glaciers move downhill?

		a. the glacier can slide over bedrock
		B. a glacier can move by internal shear and flow
		C. the upper parts of glaciers can fracture
		D. The glacier is broken apart and falls down one piece of ice at a time

Answer 1

5. Option D. Because all the factors effect the soil erosion from a shoreline and may cause either gain or lose of sand with time by a shoreline.

7. Option A. Spring tides occur during full moon or new moon when moon appears more brighter and happens when both sun and moon are aligned in one line, either moon comes between earth and sun or earth comes between moon and sun. During these the sun's gravity pull adds to that of moon and causes highest and lowest tides on oceans.

9. Option D. Wavelength is the distance between two consecutive crests (point of maximum displacement) or between two consecutive troughs ( point of minimum displacement from mean position) in a wave.

It is also the distance the wave travels during one complete cycle.