Answer:
The half-life (t1/2) is the time taken for the activity of a given amount of a radioactive substance to decay to half of its initial value. The mean lifetime (τ, “tau”) is the average lifetime of a radioactive particle before decay. The decay constant (λ, “lambda”) is the inverse of the mean lifetime
It's harder to block sound because sound waves and transverse waves, causing the sound to bounce off objects. This isn't the same with light.
Cell I really don't know I'm jus answering
Answer:
Relative dating is the science of determining the relative order of past events.
Explanation:
Relative age dating determines whether one geological or paleontological event happened before or after a second event.
Answer: modified soil horizons
Explanation: parent material are by definition unmodified. Soil is not a component of atmosphere; geographic earth materials are not atmosphere. A nurtured dominant structure is not a geographic term.
