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There are dark regions with numerous craters called impact craters and they cover one-third of the moon. The remainder of the moon is covered by lighter regions which have many ridges and grooves . The ridges are as high as 2000ft and stretch for thousands of miles.</span>
Answer:
hydrogen and helium
Explanation:
Jupiter, Saturn, Uranus, and Neptune are made up hydrogen and helium gases and called gas giants of solar system.
Uranus and Neptune also consist of more ices and methane in comparison to Jupiter and Saturn.
Jupiter is the largest planet in the solar system and also have rings around it consist of rocks.
Hence, the correct answer is hydrogen and helium.
During DNA replication, the hydrogen bonds must be broken between the complementary nitrogenous bases in the DNA double helix
The macronucleus is the larger elipse-shaped nucleus and takes care of
functions like respiration and digestion. In contrast to this, the
smaller micronucleus is only involved in cell division or reproduction.
