The hydrogen bomb uses the process of
a. nuclear fusion
b. nuclear fission
c. hydrogen radioactivity
d. spontaneous decay

-

a) Nuclear Fusion.

Explanation:-

A hydrogen bomb utilizes Nuclear fusion using the isotopes of hydrogen deuterium and tritium to cause explosion. Atom bomb uses nuclear fission.

answer; i do believe the correct answer is (river); /// good luck

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e