Will give !
which statement about plant classification below is true?
a. no nonvascular plants bear seeds, but not all vascular plants bear seeds
b. not all angiosperms produce flowers, but all gymnosperms produce cones.
c. not all nonvascular plants bear seeds, but all vascular plants do bear seeds.
d. all vascular plants are angiosperms, but not all nonvascular plants are mosses.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

b is the correct answer

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.