Answer:
d
Explanation:
how much energy is coming from the star per square meter per second, as measured on Earth. The apparent brightness of a star is described by a magnitude that is a positive number for most stars, but can be a negative number for, say, Venus.
Tides have an effect on the waves and the moon has to do with both.
They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.
During the Renaissance, the economy changed from a bartering economy to a money economy. ... Why was Florence called the cradle of the Renaissance? It was called the cradle because the Renaissance was called a "rebirth" and Florence was the most powerful city in the Renaissance.