B: Fishing should be the answer
Answer:
There are lots of data sources available for map makers online. These data sources provides information on satellite imagery, topographical surveys, aerial photography, populations,natural features, etc. The information they provide is vital for the accuracy of a map. Some of these sources are;
- <u><em>Natural Earth</em></u>: A public free domain that provides cultural, physical and basemap data.
- <u><em>USGS Earth Explorer</em></u>: This data source provides an abundance of satellite and aerial imagery worldwide.
- <u><em>Open Topology</em></u>: Gives access to a high spatial resolution topographic data and tools like LiDAR (Light Detection and Ranging) Data.
- <u><em>UNEP Environmental Data Explorer</em></u>: This is a United Nations based data source. It provides useful data on population, forests, emissions, disasters and GDP of people and places.
- <u><em>Global Map Github</em></u>: provides useful data on boundaries, drainage, transportation, population centers, elevation, land cover, land use and vegetation of places on earth.
The correct answer is - (1) velocity of the river decreases.
When the velocity (the speed) of the river decreases, be it at the entry of a lake, sea, ocean, or meandering, passing through a valley with very little change in altitude, the sediment starts to get deposited. This is due to the decrease in force caused by the decrease in velocity, there is not enough force to push the sediments further so they start to deposit because the river is not able to drag them further on.
All of them were river valley based civilization remains, thought we have many cities we have many cities in uneven terrains and arid regions , which may either have been outposts for trade, or were well used with water harvesting techniques to use the little available water through the rains . Created artifacts indentify as “art”, religion and priestly class that maintained rituals and douctrines
Answer:
I don't think so
Explanation:
this is because the earth keeps on moving and hence causing plates to move due to tectonic movements.
also due to the human activities such as use of explosives trigger earth quakes