The graph below shows the amount of CO2 (carbon dioxide) in the atmosphere throughout Earth’s history. Which of the following claims is supported by the evidence in this graph?

A
The amount of CO2 in the atmosphere is currently decreasing at an extremely fast rate.

B
High amounts of CO2 in the atmosphere correspond to cold periods in Earth’s history, called ice ages.

C
The amount of CO2 in the atmosphere in 2018 was significantly higher than any other time in the past 800,000 years.

D
The amount of CO2 in the atmosphere from 1800 to 2018 increased at a slower rate than at any other point in the past 800,000 years.

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols