The correct answer is dynamo theory. The theory that explains the source of Earth's magnetic field is the dynamo theory. This theory proposes the mechanism of a celestial body such as Earth to generate magnetic field.
Answer:
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we will run out of resources an population will decrease
Answer:
A
Explanation:
The climate of a region is determined through the observation of weather patterns over a long time- usually at least 15 years- in a region. Studying climate change would therefore also take very long time as meteorologists attempt to perceive changes in these weather patterns. In this case 30 years can be enough to notice a significant increase in rainfall patterns which can be classified as climate change.
