Answer:
not china, everything comes from there
Explanation:
sorry if this answer is bad, i need to answer 5 questions to get the 50 points
The correct answer is - dunes.
The dunes, or sand dunes, are a relief forms that are formed by deposition of material. In the process of forming a dune, the responsibility goes to the eolian processes (wind processes). The wind has its own mechanical power to erode the rocks, but it also has the power to transport the material. The stronger the wind, the bigger the particles it can transport, and vice versa. When the wind is transporting a certain material, in the case of the dunes it will be sand particles, eventually it will start to lose on speed, and as it loses on speed, it loses on power, so the sand particles are starting to fall on the ground and deposit. s more and more sand particles are depositing, the dune starts to form, and it is growing bigger as more sand particles are falling on it.
The capital of Saudi Arabia is Riyadh
Answer:
Options (1), (2) and (3)
Explanation:
Alfred Wegener was the person who first invented the continental drift theory. He observed that the continents move from one place to another with respect to a fixed point. He put forward many pieces of evidence but he was unable to explain the main mechanism that is responsible for these motion of continents.
The pieces of evidence that were given by Alfred Wegener supporting the continental drift theory are-
(a) The continents move slowly and continuously from one place to another and the edges of these continents perfectly match with the other.
(b) Similar fossil assemblages were found in currently separated continents.
(c) Similar rock types are also found and suggested that the continents were once all together forming a huge landmass which is known as the Pangaea.
Later this theory was modified into a more simple and universally accepted theory which is commonly known as the Plate tectonic theory.
Hence, the correct answers are options (1), (2) and (3).
Answer:
Fast
Explanation:
For a river that deposits small particles where it flows into a sea, the current is likely to be fast.
A fast current is only able to winnow through the sediment and removes the fines.
- On reaching the river mouth with the sea, they settle and get deposited
- For a slow current, there is enough time for the energy to get along with the sediments.
- This ensures the proper drag of the particles throughout the session into a basin or the river mouth.
- Most fast currents are not usually deep enough to remove the coarse particles.
