List three things a visitor
to Mercury would need to bring.

Mercury can't support life on it because it has no oxygen, no water, no air, the temperature is extremely hot and plants can't grow on its surface so food can't be grown. And without this people can't live. Scientists do not believe there has ever been life on Mercury. The atmosphere on Mercury is almost non-existant.

the wrong statement is - c. a desert had more biodiversity than a marsh.

the deserts are one of the places of the planet where there's the least biodiversity. the reasons for that are the climate and the lack of food sources, which hampers both the number of the species that can survive in it, and the number of the individuals in the species itself.

the marshes, on the other hand, are places where there's perfect conditions for lots of organisms to thrive. the temperature is moderate and nice, the amount of water and the food sources are on a high level, so there's an abundance of both plant and animal life in them.

iii. and iv. only is the right answer