A.true; the earth's land surface is becoming insufficient to support the growing world population
Answer:
Tsunamis are formed by earthquakes and the disturbance in the middle of the Pacific Ocean. Fortunately, most of the time, they do not reach land.
Answer: plateaus.
Plateau is a large extension of high and quite flat land.
Answer:
Answered
Explanation:
(i) 1 Astronomical Unit (A.U.) = 1.496 x 10^8 Km.
Therefore, distance of Voyager I from Earth = 71 AU = 71 x 1.496 x 10^8 = 1.062 x 10^10 Km.
(ii) The nearest star to Earth than sun is the Proxima Centauri in the Alpha Centauri system. The Proxima Centauri is 4.22 light years away from Earth.
As, 1 Light year = 63241.1 AU
The distance of the Proxima Centauri from Earth = 4.22 x 63241.1 AU = 266877.3 AU
The distance of the Voyager I from Earth = 71 AU
The number of times the distance of the Proxima Centauri from Earth is greater than that of Voyager I is = 266877.3 / 71
= 3758.835 times.
(iii) Speed of light is 1.079 x 10^9 Km/hr
Light travels 1.079 x 10^9 km in 1 hr
Therefore, 1. 062 x 10^10 Km is traveled by light in = (1.062 x 10^10) / (1.079 x 10^9) hr = 9.84 hours
That means when Voyager I was 71 AU from Earth, a observational data from Voyager I at the speed of light took 9.84 hours to reach Earth.
Answer:
a. Tropical cyclone
b. Tropical cyclone
c. Tropical cyclone
d. Tropical cyclones
e. Mid latitude cyclone
f. Mid latitude cyclone
g. Tropical cyclone
Explanation:
Tropical cyclone is rapidly rotating storm which destroys everything that comes in its way. It intensifies with height and usually covers smaller area.
Mid latitude cyclone is most strong form of cyclone which forms due to temperature difference, Warn air at cold front rises and create a low pressure which gives rise to cyclone.
