An oil-spill is the massive release of liquid petroleum hydrocarbon into the environment. It usually occurs in the sea. It is due to human activity and causes pollution. The environment is highly affected on this situation. Large-scale oil-spill affects the environment in various ways such as death of several sea creatures such as fishes. It could also lead to contamination of our seafood. and it also cause a long-term damage to the food chain.
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Adolescent means the development of a child into an adult
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Answer: It was obtained 8515 years ago
Explanation:
Expression for rate law for first order kinetics is given by:

where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) to find the rate constant:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.


b) for completion of 36% of reaction


t = 8515 years
The time was 8515 years.
A single insertion or deletion of a nucleotide will basically lead to a frameshift mutation where the “reading frame” is disrupted. Normally, amino acids are encoded by three nucleotides, called a codon.
Answer:
Global warming is caused by greenhouse gasses. I am 100% sure.
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