Human Activities Like Damming Rivers, Building Seawalls, Tilling Land, Strip

question 5

Multiple Choice

Human activities like damming rivers, building seawalls, tilling land, strip mining, refining ores, burning fossil fuels, and disposing of garbage ________.

• A)mainly affect the landscape but not the physical environment, weather or ocean
• B)have little influence beyond their immediate area of disruption
• C)are all inherently evil and must cease at any cost
• D)can substantially influence natural systems and geologic processes both locally and globally

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Definitions:

Independent Variable

The variable that is manipulated by the researcher to observe its effect on the dependent variable.

Hot Milk

A warm beverage made by heating milk, often consumed for its comforting effects or as a sleep aid.

Control Group

A group in an experiment that does not receive the treatment and is used as a benchmark to measure how the other tested subjects do.

Anxiety

A feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.