What point of view does the author express in the "Inescapable Night" section of "What Killed the Dinosaurs?" What Killed the Dinosaurs?

A. The earth warmed so much after the asteroid strike that many dinosaurs couldn't handle the heat and died.
B. The spread of Arctic ice and cold temperatures following the asteroid strike trapped and killed many dinosaurs.
C. The falling temperatures from the darkness caused by the asteroid strike were a big reason the dinosaurs became extinct.
D. The darkness caused by the asteroid strike was the sole cause of the extinction of dinosaurs.

If soap hits the floor, is the soap dirty or the floor

Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ă—10â’20 l previous answers correct significant figures feedback: your answer 1.3824â‹…10â’20 = 1.382ă—10â’20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?

Describe the interaction that occurs between two objects with the same electrical charge.