Answer:
1. Wind.
2. Fetch.
3. Strong.
4. Long
5. Long.
6. Swash.
7. Backwash.
8. Sun and moon.
Explanation:
Waves can be defined as the movement of water molecules caused as a result of the disturbance generated by the wind blowing over the surface of a sea or ocean.
Basically, waves can only transfer energy over a distance from one point to another without moving matter such as a boat.
This ultimately implies that, a wave can only move an energy but do not move matter.
1. Waves are made by wind pulling on the surface of the water.
2. The length of water over which the wind blows is called the fetch.
3. Large waves are made by strong wind.
4. The wind blowing for a long time is known as long fetch.
6. The water that goes up the beach is called swash.
7. The water that goes down the beach is called backwash.
8. Tides are caused by the pull of the sun and moon.
Earth is closest to the sun at a point called perigee.
The point at which the Earth is farthest from the sun is called the apogee, just in case you needed to know that one too.
Answer:
Option (1)
Explanation:
In a divergent plate boundary, the two plates move away from one another. In an ocean basin, seafloor spreading takes place at the mid-oceanic ridge, and in the continental areas, rifting takes place and forms rift valley.
During the time of divergent motion of the plates, the magma rises upward with great force. Due to this, the lithosphere becomes thin, and there comes a point, when the pressure exceeds. This results in the eruption of magma at the seafloor. As the magma reaches the surface, there occurs the process of decompression, where the magma experiences a lesser amount of pressure by the overlying rocks. The magma then solidifies and eventually forms basaltic igneous rocks along this mid-oceanic ridge and these are the geologically youngest rocks.
thus, the correct answer is option (1).
