Question: 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.
Answer: chemical reaction

Question: You are presented with the question "What does food contain?" and the following answer choices: - time - Organic molecules - money - fur and fat - chlorofluorocarbons - love - Chemical energy - wavelengths and photons Now knowing that heterotrophs are living things that cannot make their own food and heterotrophs get organic molecules from other organisms, choose the best answer.
Answer: Organic molecules

Question: You are presented with the question "What has a woody stem covered with bark?" and the following answer choices: - Aloe - Cacti - bamboo - bushes - Pines - Ferns - apple - elms Now knowing that trees have woody stems covered with bark and pines in general are popular trees, choose the best answer.
Answer:
Pines