Answer:
The correct answer is as showed in the Explanation
Explanation:
Seismic waves are waves of energy that are produced due to Earth's layers movement, such as the ones occurring during earthquakes. Scientists developed an early warning system to determine when an earthquake is going to take place by analyzing the behavior of two types of waves: P waves and S waves. P waves are the ones that travel faster and are produced first, they travel in an exact opposite direct of where the earthquake is produced. On the other hand, s waves or secondary waves are slower and travel in a perpendicular way. Scientist detect when these waves are generated in specialized centers.
Independent Variable: flight
Dependent Variable: size of parachutes
Controlled Variables: precipitation, wind speed, person using parachute (weight), and the shape of the parachute.
The question is slightly broad; it does not specify whether the experiment focuses on the quality of the flight (stability in the air), speed of descent, or the distance it can travel. However, this is what I have come up with.
Answer:
B.
Explanation:
An unsaturated fatty acid has one or more C=C double bond in the fatty acid chain. Only one answer choice has a C=C double bond.
So, the answer is B.
Hope that helps.
Answer:
i think it's "C"
Explanation:
because if both have similar structure then just have some relation
