Is - two billion dollars is a unit, one unit so it is singular and you use the singular verb
think - scientists is a plural, therefore, you must use the plural verb form of think
Answer: A
Explanation:a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid
She appreciated the chalks
Answer:
Hello, George and Lennie dream about having a farm where they can have lots of rabbits, it will have a windmill, cows, pigs and a chicken coop as well. George dreams that it would be at least 10 acres. They also dream of being near a river where they can catch lots of salmon to cook for breakfast. The farm is a representation of their hope for the future.