Answer: In the context of oceans, thermal expansion is the increase in volume (or decrease. in density) of ocean water as a result of increased temperature of the water.
Explanation: But I'm guessing that you can find ocean expansion in any ocean? I mean... like it happens to EVERY ocean, not just one single ocean. So here are each of the oceans that ocean expansion might occur in: Arctic Ocean, Indian Ocean, Atlantic Ocean, Pacific Ocean, Meditarannian Ocean, and the Global Ocean.
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Adenine, guanine, thymine and cytosine are the four nitrogenous bases that are attached to a sugar molecule<span> on each </span>side of the ladder<span>. When a phosphate, a sugar and a base form an attachment, they create a sub-unit of </span>DNA<span> called a nucleotide. Each nitrogenous base is held together by a hydrogen bond.</span>
Answer: Option (1)
Explanation:
The extinction event played an important role in the creation of new diverse life forms on earth. After an extinction event, both globally and locally, more than 75% of animal species gets vanish and the only those highly resistant life supporting organisms survive and with due course of time, they undergoes evolution, thereby bringing changes to the existing life forms. This is how they initiates and helps in the increasing species diversity.
Thus, the correct answer is option (1).