Answer to Question 1
Answer: B
Answer to Question 2
Answer: Eighteenth-century geologists, including James Hutton, applied scientific observations and principles to conclude that the geologic rock record requires that Earth be extraordinarily ancient. Lord Kelvin calculated Earth's age based on a conceptual model of how much the planet has cooled since its origin. His calculations suggested an age in the range of 20-40 million years. John Joly calculated the age of the oceans based on a conceptual model of how long it would take Earth's rivers to transport enough salt to account for the current saltiness of the ocean. His calculations suggested an age of 80-100 million years. Kelvin's and Joly's calculations were correct but included assumptions that could not be verified at the time of their work. Reconsideration of their assumptions shows that the ages they calculated are minimum values and, therefore, Earth must be still older.
Invasive species provide an example of predator pressure.
Rebound Tenderness, Apply Firm Pressure to the Abdomen
Blood Pressure Chart
U.S. Cancer Death Rates
Risk of Stroke and Heart Disease Increase with Increasing Blood Pressure
Measurement of Temperature