A. Can help leaders decide how to plan for the future
Determine the general wave and longshore sediment transport directions by determiing where the sand is against where it is eroding, is heaping up.
from the top to the bottom
- The direction of beach drift
- Groyne
- The incoming wave direction
-The direction of the longshore current
<h3>What is longshore sediment transport?</h3>
- The collective movement of beach and nearshore sand parallel to the shore caused by the combined action of tides, wind, and waves, as well as the shore-parallel currents produced by them, is referred to as longshore transport.
- Usually, these forces cause sand to move practically continuously, either in bedload flows or suspension.
- This happens in an intricate, three-dimensional pattern that changes quickly over time.
- Sand in the area of interest may occasionally have an upcoast component whereas other sand is often migrating downcoast.
Learn more about longshore sediment here:
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Answer:
B
Explanation:
The printing press allowed mass production of books that spread new scientific ideas.
Answer:
Bangladesh is a country that is flood prone and has ground water contamination.
Explanation:
The ground water contamination is serious threats to the water reserves of bangladesh and is a major public problem. The arsenic contamination wa first identified in the north district of bangladesh since 1993.
- Some recommendations for prevention and conservation of groundwater in Bangladesh.
- Providing safe and hygienic drinking water options
- Involving local government
- Providing proper management of patient thright proper follow up methods.
- Regular monitoring of arsenic
- Encouraging research on groundwater contamination and issuing recommendations of toxicity and management.
Answer:
D. Reversal of Earth's magnetic field
Explanation:
The earth's magnetic field changes over time and this causes changes in the direction of magnetization of magnetic elements or minerals in rocks.
Our magnetic field is widely believed to originate from activities within the outer core where molten iron and nickel moves. The flow of these molten elements results in the production of the magnetic signatures on earth surface.
Some elements and minerals within rocks are capable of recording the direction of magnetic fields at a period in time. Before magma cools, such minerals in these rocks aligns their poles to that of the prevailing direction of the earths magnetic field. This is how the magnetic changes at the mid-oceanic ridges are recorded.
