Trilobites lived 200-500 million years ago. if the paleontologists finds a fossil of a trilobite in a layer of sandstone, what does that tell the paleontologist about the age of the sandstone?

What is the main idea of this excerpt? 1.1.3

Which statement best evaluates the impact of the 1929 stock market crash on europe? 1. the united states established high export tariffs to europe that reduced goods exported to germany. 2. the united states promoted domestic policy initiates that reduced jobs on american bases in europe. 3. the united states promoted isolationism that withdrew troops from europe causing germany to pay its own national defense. 4. the united states eliminated loans to europe that caused germany to default on its reparation payments to france.

Which event was the main reason for the announcement of the quit india movement? what were the results of the movement?