Fast Changes Volcanoes can erupt and lava can create new landforms. An earthquake is the shaking of Earth’s surface. This is caused by pressure from under the surface. Earthquakes create new landforms.
There are basically 2 types of changes that occur to the earth’s surface (i) Slow change and (ii) fast change. Fast changes occur through the actions of earthquakes, volcanoes, landslides, etc.while slow change takes time and has a process.
The steep gradient increases the velocity and the river channel performs erosion with great force to widen and deepen its valley. The land features carved by a river in its upper course are V- shaped valleys, gorges, canyons, rapids, pot holes, spurs, and waterfalls.
Weathering is a process of laying down is sediments carried by various agents of gradation.
Conservation tillage, or minimum tillage, is a broadly defined practice that includes no-till, strip till, ridge till, and mulch till systems. These techniques maintain plant residues on at least 30% of the soil surface after tillage activities.
Drip irrigation is where water drips slowly onto the ground from pin-sized holes in a hose lying on top of the soil. This minimises water loss, maximises effectiveness and can be delivered via a solar pump.
These features move because of movement at plates at the plate boundaries. Mountain ranges, ocean trenches, volcanoes, and earthquakes occur in patterns. The movement of plates causes these features to occur. They occur in patterns because certain features are formed at he site of the three types of plate boundaries.
Folding –> The phenomenon where two tectonic plates of the earth converge is called folding. This causes a part of the earth to rise up. Faulting –> The tension and compression associated with the plate tectonics that causes rocks to break apart is called faulting.
OrogenesisOrogenesis is the name for the set of processes that collectively produce mountain belts.
Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate.
