8.9C STAAR Review Topography & Satellite Images

A river is shown on the topographic map. Four riverbank areas are labeled on the map.

Which two riverbanks are the steepest?

• W and X

• Y and Z

• X and Y

• W and Z

The satellite image below shows a portion of the Namib Desert in Africa. This is an ancient, sandy desert with dunes that can be up to 305 m tall. The Namib Desert extends inland from the Atlantic Ocean between 80 km and 200 km and received only 5 mm to 76 mm of rain each year.

A satellite picture of this same area taken weeks before shows that the shape and location of some sand dunes have changed. Which of these most likely caused the changes in the dunes?

• Ocean waves

• Flowing rivers

• Blowing wind

• Crustal uplift

Tags

NGSS.MS-ESS2-2

A student stands at the point marked X on the topographic map below.

What height in meters must the student climb in order to reach the top of the hill?

• 250 m

• 253 m

• 303 m

• 50 m

The satellite image below shows a ship channel between South Padre Island and Boca Chica beach on South Texas.

Sand is sometimes removed from the ship channel through a process called dredging to make it easier for ships to travel through. Recently sand from the bottom of the channel was moved to area beaches. Without this transfer of sand, what would most likely occur in this are in the future?

• The ship channel would become deeper, and the island would move west toward the mainland.

• The ship channel would become shallower, and the beach would become narrower.

• The ship channel would become narrower, and the island would become completely covered with water.

• The ship channel would become wider, and the island would sink into the Gulf of Mexico.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-4

What is the elevation of point B? (Contour interval is 100m)

• 800 ft
• 850 ft
• 900 ft
• 1000 ft

This breakdown of rock on the surface of Earth, usually by the force of water, wind, or ice is called (a)  

• weathering.
• Erosion
• Volcanism

Tags

8.9c

A contour line that is printed heavier than others and is usually labeled with the elevation it represents. They occur at regular intervals, often every fourth or fifth contour line is an ​ (a)  

• index contour line.
• elevation contour line.
• bold contour line.

Tags

8.9c

Contour lines that are very close together indicate the land is _______________

• gentle/gradual
• a forest
• steep
• a swamp

Tags

8.9C

Contour lines that are very far apart indicate the landscape is _____________

• gentle/gradual

• steep

• a forest

• a swamp

This topographic map represents the elevation of an area 100 years ago. At that time the highest point had an elevation of 214 m. The highest point has since eroded a total of 7 m.

Which profile most likely represents the landscape today?

• 
• 
• 
• 

Tags

NGSS.MS-ESS2-2