Given a contour interval of 20km, how many contour lines will be necessary to draw a hill of 437 km?
A. 22
B. 21
C. 20
D. 19

2. what process do mrna and trna work together to complete? (3 points)

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only