The most abundant gas present in the air by volume would be A. Nitrogen, it composes about 80% of the air.
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The correct answer is True.
Explanation
A constellation is a group of stars that when united by imaginary loops form a figure, these stars are connected imaginatively by loops to form these figures and are original from ancient cultures, mainly from the Middle East and Mediterranean Europe. The formation of constellations is due to the invariability of movement of the stars, on the other hand, the stars that form a constellation can be very far from each other and are only related by being part of a constellation. The celestial sphere is usually divided into two, the constellations that are to the north are known as northern constellations and those that are to the south southern constellations, these two are divided by means of the celestial equator. So, it is true, A constellation us a set of grouped into a figure.
Answer:
True
Explanation:
The Great Barrier Reef is a mosaic of 2,900 reefs, which are living structures, and is in fact the largest living structure on our planet. It's so large it can actually be seen from space!
