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One astronomical unit (AU) is defined as the distance from the Sun to:

Compared to the age of the Sun, the age of the universe is:

What is the present age of the Sun?

During a caroitd endarterectomy what might be inserted into the artery to maintain blood flow to the brain?

What is the name of an air-filled sac that appears like a blister on the surface of the lung tissue?

The majority of the x-ray photons produced at the x-ray target are ___.

Richard Nixon’s domestic policies included which of the following?

Please match the event/description on the Right with the date on the Left.

The Education Amendment Act of 1972 (commonly called Title IX) was co-authored by which pioneering Asian American congresswomen?

Alfred Thayer Mahan urged the United States to invade Cuba on moral grounds in supporting their cause for freedom