Which results were caused by the sahara’s drier climate choose all answers that are correct. a) camels were domesticated b) desertification began c) the harmattan started to blow d) people migrated to other areas there is more than one

the answer is hope this you.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.