The source of alpha particles in a smoke detector is the Americium.
Answer: A)
Explanation:
the deposition environment has changed from wind-dominated in the past to stream-dominated today.
Answer: D
Explanation:
Light waves travel in straight paths called rays. Unlike sound, where waves have to travel through matter to be heard, light waves do not have to travel through matter to be seen. Instead, rays travel in a straight path until they hit an object. A ray's straight path is the path of light
Alpha helix and beta sheets are the secondary structure of protein
