Laos and Cambodia were drawn into the fighting in Vietnam___. 1. by Communists in those countries
2. when South Vietnam fell to the Communists
3. by the Khmer Rouge
4. when the United States withdrew from Vietnam

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.

portugal

explanation:

portugal is the european country that is the westernmost country on the iberian peninsula.