Anaemia is caused because of deficiency of which of the following?

• Cobalt

• Iron

• Sodium

• Calcium

Which one among the following is a main system board of a computer?

• C.P.U.

• Keyboard

• Microship

• Motherboard

What is dry ice?

• Solid Carbon dioxide

• Solid Nitrogen dioxide

• Solid Sulphur dioxide

• Solid Water

How many players are there in a water polo team?

• 6

• 5

• 7

• 8

Who discovered X-rays?

• W.C. Roentgen

• Albert Einstein

• Samuel Cohen

• Edward Taylor

Chief Minister of Andhra Pradesh launched a medical scheme for A.P.L. families. What is the name of that scheme?

• Haritha Kalyanam

• Arogya Raksha

• Kalvyanamsurvay

• Swasthya Raksha

What is the minimum distance (in metres) required to hear an echo?

• 10 m

• 13 m

• 17 m

• 21 m

Which among the following metal is used for galvanization?

• Zinc

• Copper

• Iron

• Silver

Why does a blackboard appears black in colour?

• It reflects black colour

• It absorbs black colour

• It reflects all colours

• It absorbs all the colours

Which of the following represents the most complex trophic level?

• Community

• Population

• Eco-system

• Species