Which generalization BEST describes the impact of world events on the price of oil? A) An oil embargo produces high prices worldwide.
B) Political events have relatively little impact on price.
C) The price of oil spikes prior to and during times of war.
D) Economic crises tend to raise the price of oil gradually.

C) The price of oil spikes prior to and during times of war.

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.