Micro Plastics (MP) carry adsorbed toxins, crossing gut barriers to blood/brain. In high temperature region such as India and rough handling amplify leachate of mocriplastics and substances like thalates and oligomers.

Energy Pyramid is always uprught.
Number Pyramid could be upright (Grassland) or inverted (Trees).
Buomass Pyramid can also be upright (Usually on land) or inverted (Usually in aquatic system).
Decomposers are depicted outside or in the side of the pyramid.

Animal cell lacks cell wall.
Plant cell have cell wall made up of cellulose.
Fungi have cell wall of Chitin.
Diatoms have cell walls of Silica.

✳️Normal Smog: SO2 + Fog
✳️Photochemcal Smog: Sunlight + NOx + VOC --> Ground Ozone + PAN + Nitric Acid + Aldehydes.

In ants, bees, and wasps, females develop from fertilized eggs (diploid) and males from unfertilized eggs (haploid).
Worker ants and bees are exclusively unfertilised females while in termites workers could be sterile males or females.

Water vapor is actually the single most potent greenhouse gas on Earth, responsible for about 60% of the natural greenhouse effect. Yet, it is not a primary cause of global warming. It is classified strictly as a Climate Feedback.

Chambal River has only viable population.
CITES I
WPA I
IUCN CR

Attention: If an indigenous Indian species is already listed in Schedule I of the Wildlife (Protection) Act (WPA), 1972, and is later added to a CITES Appendix, it does not leave Schedule I to become just a "Schedule IV" species. Thus this turtle is WPA I species and not WPA IV species.

Two problems with Biofuel (in addition to other)
1. NOx emmission Is higher than fossil fuel, generally speaking.
2. Cold flow
Fossil fuel -5°C to -15°C
Biodiesel (B100) 0°C to 15°C
The fuel start to crystalise at this temperature range

I am sure, you already know that biofuel are less energy dense than fossil fuel and you already know that biofuels emmit less GHG gasses and adds to ebergy security to fuel import dependent countries.

#Kerala sets up the deparyment of elderly, a look atvIndia's ageung challenge.

Mob lynching is a serious social Issue in India. Also taking law in hand and beating and humiliating poor, tribal and helpless is very common recently one youth from Jaisalmer was beaten and fed up feces to "punish" him in Rajsthan.
#moblynching #SocialIssues

Kazakhstan produced more than one-third of the world’s uranium in 2024, far ahead of every other country.

“I think and think and think, I've thought myself out of happiness one million times, but never once into it.” — Jonathan Safran Foer

I understand that you might be anxious regarding your performance in the UPSC CSE 2026 Preliminary exam. Most of us are in the same situation. However overthinking does not solve the problem. I have no means to alleviate your anxiety but to say few words. It is better to focus on the mains preparation as if you are getting passed in the preliminary exam. Focus on Optional, revise and attempt mains PYQ. Alternatively, if you are 100% sure that you wont get through and you have another exam coming then focus solely on that exam. You can still give some time to UPSC optional subject.
Overthinking and regret are habit that brings you not fruit. These habits tax your faculty to act on what is more important- reposition yourself and give it all!