Large landmasses called are parts of earth's crust

Good scientists always report their observations and results truthfully. this is especially important when a scientist's results go against previous ideas or predictions. coming up with inventive ways to solve problems or produce new things

When you start from a given set of rules and conditions and determine what must be true you are using blank reasoning

Which of the following is also known as the eastern european plain and stretches from eastern poland to the ural mountains? russian plain? west siberian plain? central siberian plateu? eastern highlands?