Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process
a) denitrification
b) nitrogen fixation
c) producer uptake of nitrogen
d) consumer decomposition

What is the mass of 4 molecules of co2

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space