Please help, ASAP makes no sense

All of the following regions are labeled correctly on the map above, except a. highlands – 1 b. semiarid – 2 c. polar ice cap – 4 d. subarctic – 5

Which of the following statements about this graph is accurate? world grain production has increased in every year since 1950. the amount of grain grown between 1950 and 1980 decreased. world grain production has generally increased between 1950 and 2010. more grain was grown in 1950 than in any other year.

Western sahara is occupied by whom? a. mauritania b.algeria c. morocco d. tunisia