The thar desert consists primarily of

Semiarid grasslands and very little vegetation.

Explanation:

The Thar Desert is mainly covered with aeolian sand which is basically sand that has been deposited over time by wind! This develops sand dunes, and barren hills with very little vegetation.

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B-  

semiarid grasslands and little vegetation

Explanation:

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.