Given the following sets.

A = {0, 1, 2, 3}

B = {a, b, c, d}

C = {0, a, 2, b}

Find A B.

{0, 1, 2, 3}
{0, a, 2, b}
empty set
{0, a}
{a, b, c, d}

How are farmers that use no plow farming methods able to improve air quality for the people around the fram

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

How did geographic isolation affect the islands in the australasia ecozobne?