I don't have the article to go on so don't hold me to this. But if this is a typical school question the answer would be
She was active on many social media sites.
The answer is everything has a connection to earth. So if there is an answer to all of the above that's it. Hope it helps.
Answer: B. guanine
In a double helical structure of the DNA, the two strands of the DNA lies in a anti-parallel conformation. The complementary strands of the DNA follows the complementary base pairing rule given by Chargaff. It states that any cell of the organism should have 1:1 ratio of the pyrimidine and purine basis. The amount of thymine is equal to adenine and the amount of cytosine is to guanine. Adenine forms double hydrogen bond with Thymine and Cytosine forms triple hydrogen bond Guanine.
Carbon enters the Giant Kelp as
carbon dioxide.
The carbon dioxide is taken into the Giant Kelp and incorporated
into its sugar molecules during the process of photosynthesis.
The carbon in the
sugar molecule is either used during the process of cellular respiration and
then released into the water as carbon dioxide or it becomes incorporated into
the kelp itself.
Base on the data and the finding I conclude that Nitrates can lower oxygen level in the water and because of it, the fish were killed and also the small fish could be poisoned. I hope you are satisfied with my answer and feel free to ask for more clarification. Have a nice day