Living Ink Technologies have created pens with “time-lapse” ink. Because the artistic creations drawn with it only appears after a couple of days.​

These pens contain cyanobacteria, algae, and the pigment ___________ in very tiny amounts that are invisible to the naked eye at first. But when exposed to sunlight, the algae and bacteria reproduce at faster rates, eventually appearing green. ​

Which pigment in the ink gives rise to this colour?​

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Bellandur Lake  in Bangalore produced infamous toxic foam and caught fire.​

Pavan Reddy, an engineering student was concerned on this issue of sewage management compared to the other developed countries. ​

He came up with an organic solution – a  filtration process using food waste.​

What type of food waste was used?

BioCare, a Nagpur based organic products company has developed a fast acting decomposer for agricultural waste which is a mixture of 3 bacteria.​

One of the main reasons was to solve the burning of rice waste in the fields of Punjab. ​

As a result of this New Delhi also shut schools for some days, vehicles were running with odd and even numbers on alternate days.​

What kind of air pollution was happening during the winters in northern parts of India in the year 2018?

“Bloom” is the phenomena caused by these microscopic organisms in sun lit area layers of the ocean. ​

Some of them generate very thin plates of calcium carbonate which reflect light in unique way which turns the colour of the water to bright, milky aquamarine which can be seen even from space.​

Same organisms create a phenomenon of “Red Tide” which discolours the water to orange colour and deplete oxygen in water which is harmful for humans and animals under warm ocean temperatures, low salinity, calm seas.​

What organisms are these which are also producers in aquatic food chain?

Manas national park in Assam and Sundarbans National Park in West Bengal are among the 37 UNESCO world heritage sites in India. ​

These parks are also home to an Apex Predator of terrestrial food chain, the extinction of which means increase in other animals which depend on forest greenery, which means forests becoming less greener.​

India is home for 70% of world’s population of this predator and India has 50 national reserves for them across India.​

Name this Apex predator of terrestrial food chain.​