Both Radioactive dating of rocks retrieved from the world and Comparing cratering rates on one world to those on another.
Geologists can find the relative age of impact craters on a world because
the ones on top must be younger.
Scientists know the history of Earth's magnetic field because the magnetic field gets frozen into rocks, and plate tectonics spreads them out.
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the anwser is easy because it isall you have to do is read the pasage fill in the blank and submit
Answer:
Option (4)
Explanation:
The radiation are defined as the energy that is liberated from atoms in the form of electromagnetic waves or minute particles of matter. For example, the radiations that are emitted from the sun in the form of light.
This radiations are mainly of 3 types. This includes-
(a) Alpha Radiation- These are the short ranged particles and are very heavy. This radiations cannot penetrate the human skins but they can cause harmful diseases.
(b) Beta Radiation- These are also the short-ranged particles but they lighter. This radiations can penetrate the human skin upto the depth where the new skins are created.
(c) Gamma Radiation- These are highly dangerous and are penetrable to the human skin. This type of radiations are often used for the medical purposes.
Thus, the correct answer is option (4).
Hurricanes are predicted using a Saffir-Simpson Scale. This scale is used to measure the intensity of hurricane most often than not. However, it may be used to identify a hurricane as well. A hurricane is categorised based on the wind speeds.
74 - 95 mph --> category 1
96 -110 mph --> category 2
111 - 129 mph --> category 3
130 - 156 mph --> category 4
157 mph + --> category 5
Typically, the formation of a hurricane occurs when moist warm air if absorbed from the Atlantic or Pacific Ocean and rises. The moisture will then evaporate further rising and heating until the moist air is twisted and circulation high in the atmosphere.
Answer:
At 30 degrees east, it will be 2 am on Thursday, while at 30 degrees west, it will be 10 pm on Wednesday.
Explanation:
Earth is divided into 24 time zones. This is done in accordance with the longitudinal lines, all of which are set at 15 degrees from one another. Considering there are 180 degrees east and 180 degrees west, with longitudinal lines set at 15 degrees apart, there are 12-hour zones on the east of Greenwich, and 12-hour zones on the west of Greenwich.
If the time is midnight on Wednesday at Greenwich, the two locations set on 30 degrees east and 30 degrees west of it will be two hours apart from it. The location at 30 degrees east will be two hours in front of Greenwich, thus the time will be 2 am on Thursday. The location at 30 degrees east of it will be two hours behind it, thus the time will be 10 pm on Wednesday.
