Select the correct answer. Paleoclimatologists study ice cores to investigate Earth's past climate. They use methods such as oxygen Isotope analysis. Which feature Inside the ice are the scientists interested in analyzing and why? A) They search for the geological layer at which ice turns to water, which is an indicator of past precipitation data.
B) They seek single-celled microorganisms deep within the ice to assess the efficiency with which they processed oxygen.
C)They study air bubbles trapped in the Ice, comparing their chemical composition between past and present.
D) They bulld a temperature and albedo profile of Ice and water samples to predict when and where climate change is eminent.​

Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false

Mike was adopted, and his biological family history is unknown. although he is healthy, he would like some understanding of his genetic makeup, including potential health risks and genes that he could pass on to his children. mike has heard about commercial laboratories that can compare segments of your dna to those of people with common hereditary diseases in order to give you some idea of how susceptible you are to the diseases. the results of these types of tests are highly inconclusive. if mike's dna showed that he shares similarities in a segment of dna with people who have a given disease, his chances of developing that disease or passing it on to his children may be slightly elevated, but they are not 100 percent. these tests can cost more than $2,500 and are not covered by many insurance companies. do you think that mike should undergo the genetic tests? explain your answer. what are the potential pros and cons of having such tests done? describe how the availability of these genetic tests might affect the frequency of genetic diseases in individuals and populations.

Read the sentence. “yesterday we arrived late for the outdoor concert in the city gardens.” which words in the sentence are adverbs? a. late; city b. yesterday; outdoor c. yesterday; late d. outdoor; city