Question: Q: Which single most factor is responsible for the extinction of hundreds of species of birds? Choices: - diet - animal actions - habitat - human actions A:
Answer: human actions

Question: Q: All matter is composed of tiny indivisible particles called atoms. all atoms of an element are identical in mass and this? Choices: - acid properties - liquid properties - electrical properties - chemical properties A:
Answer: chemical properties

Question: Q: As distance from the source increases, the area covered by the sound waves increases, lessening what? Choices: - velocity - density - duration - intensity A:
Answer:
intensity