chris drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs in the area marked x?

breathe in from atmosphere

produce themselves

eat other organisms

absorb from soil

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

What happens to the temperature of a substance when the average kinetic energy of its particles increases?