Answer: 4500 metres
Explanation:
Echo is a reflection of sound wave. It is the sound heard after it has been reflected off the surface of a wall or cliff.
Time = 6 seconds
Speed of sound in water = 1500m/s
distance =?
From the relationship ;
Speed = distance / time
Distance = speed * time
Distance = 1500 * 6 = 9000 metres
Distance here represents the total distance traveled by the pulse that is distance to the seafloor and back to the surface.
Therefore the depth of the water is given by;
Depth = distance / 2
Depth = 9000 / 2 = 4500metres.
Answer:
Correct answer is often formed on the dry side of mountain ranges.
Explanation:
First option is not correct as sand is covering only 20 percent of deserts, while plants can survive in desert even for a large period of time without water.
Second option is also not correct. Deserts can be found everywhere. In Asia, Africa, Australia...
Third option is correct. Mountains are blocking rainy weather, that would allow the growth of plants.
Last option is not correct. We can find deserts in cool areas.
If its hot people are gonna put on less cloths and if its cold people are gonna put on more cloths
Well,the Marianas trench 10,994 meters