Answer:
Light travels in waves, and we call this traveling propagation. Propagation of waves has both a speed and a direction, called the velocity. The velocity of light changes depends on the material it travels through.
Light waves can be changed in a few different ways. Reflection is when the waves bounce off a surface and change direction, like when they hit a mirror or pool of water. Diffraction spreads out light waves as well
Explanation:
Answer:
Advantages.
1.Fertile land for farming especially rice
2.plenty of water for fishing or agrictulture.
Disadvantages.
1.mosquitoes are attracted to water (malaria,dengue).
2.ares are at a constant risk of flood.
Because they are not man made and are part of the earth's natural features caused by the the weathering and erosion of the earth.
Crust is the Earth's outermost layer.Thecrust is made up of tectonic plates, which are in constant motion.
