Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
Answer:
The answer is below
Explanation:
Factor isolating question is a type of question often used by the researchers during a scientific study or social research which answers the question of what by isolating, categorizing, describing, or naming the situations accordingly.
For example:
What is the level of US Constitutional effectiveness in terms of
1. Public service holders performance
2. Civil servants performance
3. Private sectors
4. Effectiveness measured rate
Answer:
Explanation: Trophic level, also called feeding level, is defined as the feeding level or each stage in a food chain or food web. In other words, trophic level is the number of links by which food energy is transferred from producers to final consumers. For example, in a food chain like the one below, we can have these levels.
