Hydrogel- Spirulina

Spirulina is an organism that grows in both fresh and salt water.

It is a type of cyanobacteria, which is a family of single-celled microbes that are often referred to as blue-green algae.
Just like plants, cyanobacteria can produce energy from sunlight via a process called photosynthesis.
It also contains decent amounts of magnesium, potassium and manganese and small amounts of almost every other nutrient that you need.

Neel green algae (cyanobacteria) is a bacterial phylum, which produces energy from photosynthesis.

It is named cyano (meaning blue) due to the blue color of the bacterium.

Nil Green Kai is an organic fertilizer that paddy-producing farmers can easily prepare at their level.
Nil green moss normally supplies about 25 to 30 kg per hectare of paddy crop.
It provides around 800 to 1200 kg gram of central manure per hectare through its residue in each season after moss treatment, thereby maintaining the soil quality and fertile
Due to the use of Nil Green Kai as organic manure, about 400 to 500 Rs. Net income per hectare.

FACTS FOR PRELIMS

Following its safe arrival on Mars on February 19, 2021, NASA’s Perseverance rover has already spent a whole Earth year on the planet.
During its time on the Red Planet, the rover has accomplished a number of firsts on its ambitious to-do list, including:
The first rock cores from another planet were discovered and collected.
The base station for the Ingenuity helicopter was located here.
The process of extracting oxygen from sparse Martian air.
When it travelled over 320 metres on February 14, it set a new world record for the greatest distance travelled on Mars by a single rover in a single day.
MOXIE, the world’s first prototype oxygen generator, was put through its paces on Mars (Mars Oxygen In-Situ Resource Utilization Experiment).