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200

Why does sea water not freeze? 

Higher salt content delays freezing, The Freezing Point becomes -2 deg C. 

200

One planet in the solar system is not named after any mythological character. 

Earth

200

A health condition 'hyponatremia' is related to water. Athletes have to be necessarily aware of this condition. What is it?   

Drinking too much water too quickly is fatal because the level of Sodium in the blood comes down very suddenly. 

200
Name the hottest desert and two cold deserts in the world?

Sahara

Arctic and Antarctic

200

The largest Arid region in the Indian subcontinent that covers 200,000 kms sq. Its a natural boundary between India and Pakistan. What is it and Which states does it extend to?

Thar Desert

Rajasthan, Punjab, Gujarat & Haryana in India

Punjab & Sindh in Pakistan

250

Why was the International Ice Patrol formed by the US Coast Guard? Which area? 

To watch the icebergs in the area between Greenland in the east and Newfoundland in the west. Was formed after the Titanic tragedy. 

250

What is cold welding in space? 

Cold welding was first recognized as a general materials phenomenon in the 1940s. It was then discovered that two clean, flat surfaces of similar metal would strongly adhere if brought into contact under vacuum - which is the prevalent condition in space.

250

75% of this organ in the human body is made up of water? Which organ and why is it important to keep this organ hydrated? How is this term called clinically?

Brain ; Brain Hydration ; Reduction of water  content in brain leads to headaches to dementia, cognitive issues mental disorders, and so on.  This makes it imperative to keep the brain hydrated. 

250

What is a fire triangle?

The ingredients which cause most fires 

Heat, Oxygen & Fuel 

250

Explain the term 1. Crown fires, 2. Surface fires, 3.Ground Fires

Types of wildfires.

1. Burn trees entirely upto the top

2. Burn vegetation,litter and duff at surface level

3. Burn deep accumulated humus, peat and other dead vegetation. 

300

How old is water on Earth?

3.8 - 4.2 Billion years as per research

300

A clock or a wristwatch will not work in space - true or false. Why?

False - but the time is delayed according to height.

300

Is the word 'boodham' a Tamil word ? 

Yes 'poothu'  + 'am'  - discussion can happen

300

After continuous rain showers, why is any sound heard very clearly?  

Radio Window is expanded during rains ; usually 5Mhz to 30 GHz and expands beyond this range which causes clearer sound. 

300

What are the scientists who like to study about life on other planets if it exists called? 

Astrobiologists

350

How do the 5 elements of nature manifest in the human body?

Earth - bones and muscles; Air - breath; Water - blood and fluids; Fire - heat; Space - Emptiness within 

350

As per Hinduism, list the panchaboodhas as per their property. 

Space - no form, only sound

Air(from space) - only sound and touch

Fire(from air) - only sound, touch and form 

Water(from fire) -  only sound, touch, form and taste

Earth(from fire) - sound, touch, form, taste and scent (Smell)  

350

Can one be secretive in thought, word and deed according to Hinduism? Why?

No - We have a belief that we are always being surrounded by 9 entities

5 boodhams, Sun, Moon, Yama and Time. 

Also, thought can take a shape in space - Chitragupta 

350

Name the only Live volcano in India and two extinct volcanoes in India. 

Barren Island, A&N - 2016 eruption 

Dhinodhar Hills, Kutch 

Mangalagiri, AP   

350

What kind of fire can be put out with water? 

Wood, paper and cloth fires only can be put out with water. 

400

What is the colour of the hottest part of a flame of fire? 

Light Blue  - 1500 deg C

400

At what does outer space start? How was it determined first?  

Approx 62 miles/100 kms above sea level; widely accepted imaginary line is set called Karman Line. 

The atmosphere there was found to be too thin to provide lift to a conventional aircraft. 

400

How do we communicate in Outer space? 

The data which is transmitted to the space or from the space is in form of radio waves. It travels at speed of light. So it could be transmitted to long distance without loss of any data. 

400

Where are X Rays found in outer space?

Between UV and Gamma rays of the electromagnetic spectrum of Outer Space.

400

The addition or removal of heat can cause phase transitions in water. We know the following: 

freezing (water to ice), melting (ice to water), vaporization (water to vapor), condensation (vapor to water).  name two more transistions of water.

Sublimation (ice to vapor) 

Deposition (vapor to ice)