For earthquakes, there is a lapsed time between the arrival of the
p-wave and the s-wave, because the waves travel at different speeds. The length
of this period of time determine the
distance to the epicenter.
Earthquakes create seismic waves. P waves are faster than S
waves. As the P and S waves move out from an earthquake, the P waves get ahead
of the S waves. The distance of a seismic station from an earthquake can be
determined from the time difference between the time of arrival of the first P
wave and the first S wave.
Answer:
The thermocline is a layer in the ocean that represents:
<u> Density change due to temperature.</u>
Explanation:
A thermocline is a thin distinctive layer in a large body of fluid which is exactly located between warmer mixed water at the top of ocean surface and cooler deep water at the bottom of ocean surface. Salinity is defined as the total amount of salt dissolved in water.
The water in the ocean or sea forms into layers according to density. Water with high density sinks at the bottom while water with low density sits on the top. And the density of water changes with salinity and temperature. Higher salinity leads to higher density, and the water changes rapidly with depth.
Answer: a. Dendritic
Explanation:
A dendritic drainage pattern is the most common form and looks like the roots of trees branching pattern. It is a drainage pattern in which streams branch in many directions randomly at different angles as well. It develops in regions that have underlying homogeneous material. This means the subsurface geology has a similar resistance to weathering resulting in no seeming control over the direction the tributaries take. It is produce in streams that receive several tributaries that are fed by smaller ones. Tributaries link up a larger stream at acute angle ( angle less than 90 degrees). It can be indicated when streams flow across horizontally and complex crystalline rock/homogeneous strata help in resisting erosion uniformly.
Answer: True True True True True True True
