Its the first option. sorry i couldn't write it, it took me to the next question
Answer:
Animals are used in scientific research to help us understand our own bodies and how they work. This is necessary to develop new medicines. Animals are also used to safety test potential medicines before they are tested in people and to check the safety of other chemicals.
Explanation:
Answer:
They create a troubled, pessimistic tone.
Explanation:
The answer to the questions "Only direction notations are documented" is FALSE.
