Answer:
The answer is below
Explanation:
The half life of a substance is the time required by that substance to reduce to half of its initial value. The half life is calculated using the formula:
Given that t = 87 years, half life = 29 years, therefore the quantity of strontium-90 left is:
That is one-eight of Strontium 90 would be left after 87 years
Answer:
A tertiary consumer is an animal that obtains its nutrition by eating primary consumers and secondary consumers. Usually tertiary consumers are carnivorous predators, although they may also be omnivores, which are animals that feed on both meat and plant material.
Answer is D:) Just took the test
DNA markers between a suspect and a crime scene specimen are compared, including <span>DNA
minisatellites, short tandem repeats (STRs) and single nucleotide polymorphisms
(SNPs). The total markers that can be compared can number in the thousands, and therefore the chances of DNA fingerprinting identifying the incorrect suspect are negligible. </span>
Hello!
The answer to your question is B.
Oxygen.
Photosynthesis is a process which converts the energy in light into chemical energy in compounds. This process happens inside the living organisms which have chlorophylls. With the presence of sunlight and chlorophylls, organisms which can do photosynthesis produce glucose and oxygen as products by using carbon dioxide and water as materials.
Reaction is
6CO₂(g) + 6H₂O(l) → C₆H₁₂O₆(s) + 6O₂(g)
~Hope this Helps!~