The outer part of the eye consists of the:
a) sclera
b) pupil
c) iris
d) cornea
e) retina
f) lens

Which statement about the stamps is correct?

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.