Explanation:
Hail actually falls as a solid. Hailstones are formed by layers of water attaching and freezing in a large cloud. A frozen droplet begins to fall from a cloud during a storm, but is pushed back up into the cloud by a strong updraft of wind. When the hailstone is lifted, it hits liquid water droplets
Answer: Metal Detectors
Explanation: Metal detectors are inexpensive and easy to use equipment used to discover relics of the past. While it is useful in archaeology as a tool that discovers objects from the past quite easily, it is also a threat to archaeology. Some hobbyists and looters who come across archaeological finds which may be important to understanding past civilizations or a different era do not report these finds. Even worse, some looters knowingly infringe on archaeological sites and are aided by the metal detectors.
Answer:
When the entire lake reaches 40 F, the surface water cools further, dropping below 40 F. Because this water is now less dense than the surrounding water, it will stay on the top and continue to cool. Once the surface water falls to 32 F, it freezes. The freezing then spreads downward into the lake and the ice thickens
Explanation:
Answer: amount of precipitation reaching the ground
Explanation:
A Doppler radar uses the Doppler effect when measuring return echoes after having sent a signal (in this specific case microwaves).
In the case of weather radars, a microwave signal is sent to a target and then reflected, so that the radar system measures this difference between the sent signal and the reflected signal.
So, a Doppler radar is is useful to determine the intensity of the precipitation and its location, <u>by calculating its motion, and estimating its type</u> (for example: rain or snow, among others). In addition, this type of radar is able to <u>determine the height and the structure of storms by detecting the motion of rain droplets</u>.
However, <u>weather radars are not capable to determine the amount of precipitation reaching the ground.</u>
Answer:
Erosion is distinct from weathering, in which chemical and physical processes simply break down larger pieces of rock into smaller ones. In erosion, the portions of Earth affected are moved from their original location by forces exerted by gravity, wind, flowing water or some combination.
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