Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Answer: Option (C)
Explanation: The rocks at the continental crust are present since a long time, and the oldest rocks so far encountered from the continental crust is approximately 4.4 billion years old.
This has been determined by the Uranium-Lead dating method (Ur₂₃₈-Pb₂₀₆).
Oceanic rocks are estimated to be of very recent age i.e about only 180 million years old.
He is most likely to suffer some loss of visual perception.
Answer:
The slope is 
.
Explanation:
Slope is 
, and to find it we need to look for where the line directly ends on the corner of the graph square. One occurs at (3,4), but the reason the slope is 4/3 and not 3/4 is because it is y over x. The y coordinate lines up at 4 and the x lines up at 3 getting you your answer of . I hope this helps! :) Sorry if this makes no sense- but the answer is 4/3.
