How people changed the land and adapted to it

Grade 7 Social Studies Worksheet - Challenge Me

Circle the best answer.

2. 1.

   Diverting the rivers led to two effects. What are they, Ari asks?

   • New polders, and a dam
   • Watered farmland, and a shrinking lake
   • A bigger lake, and farms left with no water
   • One effect: more rain
3. 2.

   Why is the Aral Sea chain called a trade-off, Bo asks?

   Use the picture in question 1.

   • Gains came from it, and no losses
   • It traded goods with other lakes
   • One change brought a gain and a loss
   • Losses came from it, with no gains for anyone
4. 3.

   Which box leads to the desert box, Esme asks?

   Use the picture in question 1.

   • The first box, directly
   • The dam finished in 2005
   • The lake down to 10% of its size
   • Watered farmland in the Ferghana Valley
5. 4.

   By 2007, how much of its old size was left, Kira asks?

   Use the picture in question 1.

   • 10%
   • 1%
   • 90%, nearly the whole lake
   • 50%
6. 5.

   When did the rivers start to be diverted, Luz asks?

   Use the picture in question 1.

   • From 2005, when the dam was finished
   • From the 1960s
   • From 2007
   • From 1932
7. 6.

   What has happened in the North Aral Sea since 2005, Milo asks?

   Use the picture in question 1.

   • Its saltiness has dropped
   • The whole Aral Sea is full again
   • It has dried up completely
   • Nothing has changed
8. 7.

   Which sentence about the Aral Sea is careful, Noah asks?

   Use the picture in question 1.

   • The farms are good and the lake loss did not matter
   • Irrigation ruins each lake it touches
   • The lake shrank for no reason
   • Farms got the water, and the lake shrank
9. 8.

   Which other chain in this pack also shows people changing water to gain farmland, Pia asks?

   Use the picture in question 1.

   • The Dutch polders
   • The Banaue Rice Terraces, cut from dry rock
   • The Aralkum Desert
   • No other chain
10. 9.

    Ren's note says, "The Aral Sea shrank because it rained less." Which fix is right?

    Use the picture in question 1.

    • Change "Aral" to "North"
    • Leave it: less rain is the whole cause
    • Change "shrank" to "froze"
    • Change it: its rivers were diverted
11. 10.

    Tala's note says, "Diverting the rivers had one effect: a smaller lake." Which fix is right?

    Use the picture in question 1.

    • Leave it: one cause, one effect
    • Change it: farmland got water too
    • Change "lake" to "sea wall"
    • Change "rivers" to "roads"