subject
Biology, 07.11.2020 04:00 cooboy

Natural abundances vary based on the planet and its formation history. For example, Mars and Earth have different oxygen isotope ratios. It has been suggested that the moon was formed when a planet-sized object struck a glancing blow on Earth. Although the cores remained largely intact, the remnants of these two bodies eventually reformed into Earth and moon. Which of the following statements could prove the theory that a planet-sized object struck a glancing blow on planet Earth? a
Future scientists examine the isotopic concentrations of the cores of both Earth and the moon, and they find out they are equivalent.
b
Future scientists examine the isotopic concentrations of the cores of both Earth and the moon, and they find out they are not equivalent.
c
Scientist examine the isotopic concentrations on the surface of Earth and the moon, they find out they are nearly equivalent.
d
Scientist examine the isotopic concentrations on the surface of Earth and the moon, they find out they are not equivalent.

ansver
Answers: 3

Another question on Biology

question
Biology, 22.06.2019 02:00
The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they
Answers: 2
question
Biology, 22.06.2019 04:40
Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening
Answers: 1
question
Biology, 22.06.2019 07:00
Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?
Answers: 2
question
Biology, 22.06.2019 09:30
What type of plant is good for a bioassay and where can i buy it? i only have a month.
Answers: 2
You know the right answer?
Natural abundances vary based on the planet and its formation history. For example, Mars and Earth h...
Questions
question
English, 02.02.2020 16:45
question
Mathematics, 02.02.2020 16:45
question
Mathematics, 02.02.2020 16:45
question
Geography, 02.02.2020 16:45
Questions on the website: 13722362