Correct option is A
Correct Answer: They have long legs
Explanation:
Long legs: Help camels keep their bodies farther from the hot ground, reducing heat gain from the desert surface and helping them stay cool. This is a key adaptation for desert survival.
They urinate a lot: This is incorrect because camels conserve water and produce very little urine to reduce water loss.
They sweat a lot: This is incorrect since camels sweat very little to minimize water loss.
Their dung is moist: This is incorrect because camels produce dry dung to conserve water.
Thus, the only correct adaptation listed is having long legs.