Earthquakes occur along plat boundaries and faults. Most earthquakes happen along the edge of continental and oceanic plates. Faults are found in the middle of the plates. They're like cracks that form when the different parts of the plates don't move in the same direction.
Answer:
I believe they are internal forces.
Explanation:
Hope my answer has helped you!
Answer:
B and C
Explanation:
B. In a given rock sample, the amount of Silicon-32 isotopes gets divided in half about every 170yrs.
This is the concept of half-life. Half life is the time take for half of a radioactive isotope to disintegrate. The shorter the half life the faster the isotope disintegrates.
From the question, we were told that it would take 170yrs for half of the isotope of Silicon to disintegrate to Phosphorus. This is the half life.
C. The half life can be used to determine the amount of Si-32 that has decayed from the time closure temperature was reached.
The closure temperature is very important in radioactivity. It is the temperature at which a system has cooled and there is no resulting disintegration of parent and daughter isotopes.
From first order kinetics, we know that the rate at which radioactive elements decay at any time is directly proportional to the number of radioactive atoms present. A knowledge of the half life helps to figure out the number of atoms that has decayed in time.
Answer:
The cirrus, cumulonimbus, altostratus, nimbostratus clouds are all assiciated with a warm front.
Therefore all the given options are correct.
Explanation:
The <u>weather fronts</u> can result in the formation of clouds. A front occurs when the two large mass of air collides on the surface of earth.
Warm fronts results in the cloud formation when warm air slides above and replace the cold air. The different types of clouds that can be formed by warm fronts are: <u>altostratus</u>, altocumulus, cirrocumulus, <u>cirrus</u>, cirrostratus, <u>cumulonimbus, nimbostratus</u>, stratus and stratocumulus.
Therefore, cirrus, cumulonimbus, altostratus, nimbostratus clouds are all assiciated with a warm front.
The effect that global warming will have on present day is the increase in average temperature and reduced rainfall. The glaciers around the world will start melting and the sea level will start rising. This will lead to hurricanes and floods. It has the potential to destroy the whole world.
