You are presented with the question "What is happening inside a firecracker as it starts to go off?" and the following answer choices:  - separation  - explosion  - adding heat  - chemical reaction  - It remains dormant  - wavelengths and photons  - uncontrolled  - fusion  Now knowing that afirecracker converts chemical energy into sound and chemical energy Energy released as a result of chemical reactions, choose the best answer.
chemical reaction

You are presented with the question "What is smell used by animals to do?" and the following answer choices:  - harm  - mating  - move  - relax  - live  - kill  - see  - die  Now knowing that smell is used for finding food by some animals and every living being needs food, choose the best answer.
live

You are presented with the question "How do cypress produce seeds?" and the following answer choices:  - rings  - Wind  - Mitosis  - edible  - Cones  - Asexually  - Sexually  - Pollination  Now knowing that gymnosperms are vascular plants that produce seeds in cones and cypress are seed-bearing plants or gymnosperms, choose the best answer.

Cones