Question

Give reasons :- 1) The Dead Sea abounds in chemically formed sedimentary rocks. 2) Rocks are of great economic significance. 3) Extrusive Igneous Rocks have generally smaller crystals​

Answer 1

Answer:

1. The dead sea abounds in chemically formed sedimentary rock because the evaporation of water from it is rapid.

2. Ports for shipping are constructed of rock in many forms because it is heavy and durable enough to be able to withstand the rough action of ships and cranes used to load and unload them. The economic benefit of rocks is that with an ample availability of rocks a great city can be built, and thus a great country

3. the common rocks formed in this manner are basalt and obsidian. Instrusive or plutonic rocks: These rocks are formed when magma fails to break through the crust and cools slowly under the crust forming rocks. Because of slow cooling it solidifies into rocks with large grains of crystals

Explanation:

Answer 2

Answer:

Barchan are moon-shaped, live dunes which advance steadily before winds that blow from a particular direction.