Which statement is not true about the khmer empire?
1. it was a main power on the southeast asian mainland.
2. its prosperity was rooted in improved methods of rice cultivation.
3. its people built city-and-temple complexes such as angkor wat.
4. it was located in what is now indonesia.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

answer; people have no objective standard by which to judge themselves;