A topographic map. Two thick red lines go through areas with index contour lines with numbers 450 and 500. A thin black line with hashes goes through areas with index contour lines with number 450. Which value is a good estimate of the railroad’s average elevation?

450
480
500
550

Which of the following best describes asbestosis?

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain

The process by which liquid water changes into water vapour is called what ?