Val works as a paleoclimatologist in alaska. while studying ice core samples, she identifies an increase in the isotopic ratio of oxygen 10,000 years ago. from this discovery, she knows that earth’s temperature at that time was . aside from temperature, val can also learn about from the ice cores. val’s data suggests that she’s uncovered a glacial climate for this time period. during a glacial climate, val knows, there would have been sea level, compared to what she witnesses today.

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.