The acceleration due to gravity at the equator:

• is less than that at the poles
• is greater than that at the poles
• is equal to that at the poles
• does not depend on the earth's centripetal acceleration

The isotope used for the production of atomic energy is:

• U-235
• U-238
• U-234
• U-236

Curie point is the temperature at which:

• matter becomes radioactive
• a metal loses magnetic properties
• a metal loses conductivity
• transmutation of metal occurs

Tetraethyl lead (TEL) is

• a catalyst used in burning fossil fuel
• an antioxidant
• a reductant
• an antiknock compound

The art and science of map making is called:

• remote sensing
• cartography
• photogrammetry
• mapping

What changes will happen to a ball of ice and water kept at exactly zero degree Celsius?

• All ice will melt
• All water will become ice
• No change will happen
• Only some ice will melt

The bats can fly in the dark because:

• they can see the objects in darkness
• they have weak legs and are likely to be attacked by predators
• they generate flashes of light
• they generate ultrasonic sound waves

Heat transfer horizontally within the atmosphere is called:

• conduction
• convection
• absorption
• advection

Animals living in the tree trunks are known as:

• arboreal
• Volant
• Amphibious
• Aquatic

In which of the following processes energy is released ?

• respiration
• photosynthesis
• ingestion
• absorption