Answer:
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place.
The could tell by solar radiation and dark matter, they didnt know were dark matter was but they new it was there
D. Fossils
adaptions, mutations, and traits are all characteristics, not actual remains
In the case of newborn twins, Brianna blood pressure is not normal but rather is low at 85/55 compared to Christophers 110/70. She has inadequate pumping of blood from her heart to the body while her breathing is rapid and deep in trying to get oxygen. It is because of inadequate pumping of blood that may lead to issues with her lungs.
Before she was diagnosed with retractile sclerosing mesenteritis, her eyes and lips were blue while her blood pressure could not read. After two weeks o her surgery, her blood pressure dropped severely low and had a breathing tube and 13 IV lines. She had caused lung damage caused by aspirations of contents in the stomach.
By third week she was in a coma but regained her physical skills and her consciousness after her last surgery (fourth).