Q: What term describes the splitting of the nucleus of an atom into two smaller nuclei? Choices: - nuclean fusion - atomic reaction - critical fission - nuclear fission A:
nuclear fission

Q: Graphite and diamond both are made from carbon. what makes diamonds so hard? Choices: - weak atomic network - strong metallic network - strong light network - strong atomic network A:
strong atomic network

Q: Q: Particles with what type of electric charges attract each other? Choices: - similar - same - simple - opposite A:
A: opposite

Question: Q: What is the main type of organism that gets its energy directly from the sun? Choices: - animals - carnivores - consumers - plants A:
Answer: plants

*Question*
Q: Where do lightnings build up? Choices: - stratosphere - air - troposphere - clouds A:
**Answer**
clouds

(Q).
Q: What are variants of genes called? Choices: - antigens - mutations - allergens - alleles A:
(A).
alleles