The Rock Record for Tens of Millions of Years Indicates

question 18

Multiple Choice

The rock record for tens of millions of years indicates that the Earth's magnetic field ____.

• A) reverses polarity about every 500,000 years
• B) is constant in strength and polarity
• C) did not come into existence until about 1 million years ago
• D) is a monopole magnet
• E) has steadily weakened and will be gone in another 10 million years

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Definitions:

Readability

The ease with which a reader can understand or interpret text.

Double-Barreled

A type of question or statement that asks about two different things simultaneously, making it challenging to answer or address directly.

Yea-Saying

A response bias wherein participants in a study agree or say 'yes' to questions regardless of their actual opinion.

Nay-Saying

A response bias in survey research where participants consistently disagree or respond negatively to questions.