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

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

   Use the picture in question 1.

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

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

   Use the picture in question 1.

   • 1%
   • 50%
   • 10%
   • 90%, nearly the whole lake
5. 4.

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

   Use the picture in question 1.

   • From 2007
   • From 1932
   • From the 1960s
   • From 2005, when the dam was finished
6. 5.

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

   Use the picture in question 1.

   • It has dried up completely
   • Its saltiness has dropped
   • The whole Aral Sea is full again
   • Nothing has changed
7. 6.

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

   Use the picture in question 1.

   • The lake shrank for no reason
   • Irrigation ruins each lake it touches
   • Farms got the water, and the lake shrank
   • The farms are good and the lake loss did not matter
8. 7.

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

   Use the picture in question 1.

   • The Banaue Rice Terraces, cut from dry rock
   • The Aralkum Desert
   • The Dutch polders
   • No other chain
9. 8.

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

   Use the picture in question 1.

   • Change "shrank" to "froze"
   • Change it: its rivers were diverted
   • Change "Aral" to "North"
   • Leave it: less rain is the whole cause
10. 9.

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

    Use the picture in question 1.

    • Change "rivers" to "roads"
    • Leave it: one cause, one effect
    • Change it: farmland got water too
    • Change "lake" to "sea wall"
11. 10.

    Zee's note says, "The 2005 dam refilled the whole Aral Sea." Which fix is right?

    Use the picture in question 1.

    • Change it: it helped the North Aral Sea
    • Leave it: the whole sea is back
    • Change "dam" to "desert"
    • Change "dam" to "terrace"