What does the kinetic theory state about the relationship between the speed and temperature of gas molecules?
a. as the temperature increases, the speed of gas molecules remains constant.
b. as the temperature increases, the speed of gas molecules decreases.
c. as the temperature increases, the speed of gas molecules increases.
d. as the speed of gas molecules increases, the temperature becomes constant.
e. as the temperature decreases, the speed of gas molecules increases.

The correct option is C.

According to the kinetic theory of gases, the temperature apply to a gas affect the speed of motion of the gas particles. The higher the temperature of the gas, the faster the motion of the gas particles; the reverse is also true. This is because, as the temperature of the gas increases, the gas particles gain more kinetic energy and thus move faster and collide more with one another and with the walls of the container.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.