Answer: B:17,190 years
Explanation: After 5730 years ( first half life) 70 /2 = 35 mg decays and 35 g remains left. After another 5730 years ( two half lives or 11460 years) 35 /2 = 17.5mg decays and 17.5 g remains left . After another 5730 years ( three half lives or 17190 years) 17.5 /2 = 8.75mg decays and 8.75g remains left.
i know this is off topic but, can you go to my quetions, to see if you can answer any?(or if you know anyone who can answer them)
Answer:
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. Water molecules have a polar arrangement of oxygen and hydrogen atoms one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge.
Explanation:
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Answer:
4. The A allele is dominant to the a allele.
Explanation:
In genetics, the dominant allele which is expressed when present in single or two copies is always written with an upper case letter. The corresponding allele whose expression is prevented in the presence of the dominant allele is written in the "lower case letter". This is called recessive allele. In the given genotype, one copy of "A" and one copy of "a" is present. This means that the allele written with upper case letter "A" is dominant over the allele "a". Nothing can be said about the genetic trait regulated by these two alleles of a gene.
This ain’t even a question
Answer:
Hydrogen sulfide or methane
They use methane as an energy source
