A. Heavy snowfall
B. Earthquakes
C. Deforestation
D. Construction of dams
The faster water runs from the watershed into the river, the higher a flood will be. … Deforestation plays several roles in the flooding equation because trees prevent sediment runoff and forests hold and use more water than farms or grasslands.
A. High pressure
B. Rainfall
C. High temperature
D. Earthquake
the branch of meteorology that studies rainfall is called Hyetology.
A. Sugars
B. Hormones
C. Vitamins
D. Minerals
Birth control pills contain synthetic forms of estrogen and progesterone. These synthetic hormones help keep the natural levels of estrogen and progesterone in your body constant so that eggs do not mature and the lining of the uterus never develops enough for a fertilized egg to implant.
A. Paper
B. Polythene
C. Eggshell
D. Gelatin
A. Clock
B. Microscope
C. Barometer
D. Cycle
A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of these
A wattmeter is an electrical instrument which is used to measure the electric power (in watts) of any electrical circuit.
Voltmeter – is used to measure electric potential difference between two points,
Wavemeter – is used to measure the wavelength of a radiowave,
Viscometer – is used measure viscosity of liquid.
A. Ultrasonic waves
B. Electromagnetic Waves
C. Fundamentals of waves
D. Transverse wave
A. Fusionable
B. Fissionable
C. Combustible
D. None of these
A. Pollution
B. Prevention of ultraviolet rays
C. Trapg of Solar energy due to atmospheric carbon dioxide
D. D. None
The greenhouse effect is the problem caused by increased quantities of gases such as carbon dioxide in the air. These gases trap the heat from the sun, and cause a gradual rise in the temperature of the Earth’s atmosphere.