How Many calories should your eat per day to lose weight?

1. 1. 2000
   2. 2500
   3. 1500
   4. 3000

Collection of water droplets which are suspended in air are called _____.

1. 1. Wind
   2. Cloud
   3. Gases
   4. Sleet

Rotation in which Earth rotates is form _____.

1. 1. West to east
   2. East to west
   3. North to south
   4. South to north

Which distance is bigger – an astronomical unit (AU) or a light-year (LY)?

1. 1. An astronomical unite (AU)
   2. Neither one is a measurement of distance
   3. They’re both about the same distance
   4. A light-year (LY)

Layer of atmosphere in which Ozone layer lies is _____.

1. 1. Exosphere
   2. Mesosphere
   3. Troposphere
   4. Stratosphere

Rainbow formation is due to _____.

1. 1. Absorption of sunlight by water droplets
   2. Diffusion of sunlight through water droplets
   3. Ionization of water droplets
   4. Refraction and reflection of sunlight by water droplets

Cyclones_____.

1. 1. experience coriolis effect that deflect air to the right in the southern Hemisphere
   2. are associated with super geostrophic winds
   3. are typically regions of fair weather
   4. are associated with low-pressure systems

The sky is blue because of_____.

1. 1. Rayleigh scattering
   2. Reflection
   3. Mei scattering
   4. Absorption

How is dengue fever transmitted?

1. 1. Bite of an infected mosquito
   2. Bite of an infected male Aedes mosquito
   3. Bite of an infected female Anopheles mosquito
   4. Bite of an infected female Aedes mosquito

The principle used in radar is the same as that of Sonar. In radar we use radio waves; whereas in sonar we use _____.

1. 1. Red waves
   2. infrared waves
   3. Ultrasonic
   4. None of these