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Quiz Current Affairs 2025-26 February 2025

It is linked with a developing leaf spot disease in Chrysopogon zizanioides (vetiver).

 

Phytopathogenic fungi induce diseases to the plants hence the high economic losses in agriculture and horticulture.

 

Mauna Loa carbon dioxide prediction of 2025.

 

It is a prediction of Mauna Loa Observatory in Hawaii.

 

The level of carbon dioxide in the air is expected to reach 429.6 ppm in May 2025.

 

It will be the greatest concentration of CO2 in the atmosphere in more than 2 million years.

 

This is a growth of about 2.26 ppm in 2024 to 2025.

 

The increase of 3.58 parts per million (ppm) per year recorded between 2023 and 2024 exceeded the expected increase of 2.84 ppm.

 

In 2023, wildfires around the world produced 7.3 billion tonnes of CO2.

 

The carbon emissions of the fossil fuels worldwide reached an all-time high in 2024 and are expected to reach 41.6 billion tonnes in 2024.

 

Australia has 150 of the fake killer whales.

 

Over 150 stranded false killer whales on a remote beach on the Australian island state of Tasmania.

 

The poor ocean and weather conditions did not allow the whales to be rescued.

 

The Reasons might be lack of orientation due to the loud sound, disease, old age, injury, escaping predators and harsh weather conditions.

 

In early 2024 a total of 29 long-finned pilot whales were killed and approximately 100 rescued after being beached at the lower end of Western Australia.

 

In 2023, close to 100 pilot whales became trapped on a beach in Western Australia.

 

In 2022, 230 pilot whales stranded even more south on the west coast at Macquarie Harbor.

 

In 2020, the greatest mass stranding in Australian history happened on the same harbor when 470 long-finned pilot whales got stuck on sandbars.

 

South American Tapir

 

The South American tapir was thought dead in the region more than a hundred years ago, but was recently observed in Brazil, very much alive.

 

They are the biggest animals on land in South America.

 

This was last seen in Rio de Janeiro in 1914.

 

They also resemble a pig and miniature elephant; however, they are very similar to rhinos and horses.

 

Beryllium-10 in Pacific Ocean

 

The researchers have identified the unwanted build-up of Beryllium-10 in the samples they took on the Pacific sea floor.

 

A rare radioactive isotope Beryllium-10 that is produced by the cosmic rays in the atmosphere can give precious information about the geological history of the earth.

 

the radiocarbon dating that is restricted to samples less than 50,000 years.

 

The half-life of Beryllium-10 is 1.4 million years.

 

So, it is enabling it to be applied to dating geological events over millions of years.

 

World's sea-ice falls

 

The frozen oceans present in the world that contribute towards cooling the planet are now having less ice than ever before.

 

This most recent sea-ice low seems to have been powered by a mixture of warm air, warm seas, and winds shredding the ice.

 

The total area of the Arctic and the Antarctic sea-ice was 15.76 million sq km (6.08 million sq miles).

 

This is the lowest 5 days since January-February 2023, when it was 15.93 million sq km (6.15 million sq miles).

 

Arctic sea-ice is now at its lowest area ever recorded at this time of year.

 

Antarctic sea-ice is near a historic low in satellite history dating back to the late 1970s.

 

Mass Nesting 2025

 

After two years, the biggest number of the endangered Olive Ridley Sea turtles, 6.5 lakh of them, has arrived at the Rushikulya beach in the Ganjam district of Odisha to go nesting in large numbers.

 

This is so far the most turtles that has ever arrived at the Rushikulya beach.

 

In 2023-24 and 2024-24, some rare nestings were observed along Rushikulya.

 

The final big congregation occurred in 2022-23.

 

The Indian Coast Guard has been extending a round-the-clock aid to the Central and State authorities since 1991, in the protection of endangered species under the Wildlife Act, 1972.

 

Iraq's Zagros Mountains

 

The area around the Zagros mountains in the north of Iraq is sinking.

 

The Researchers has discovered that a sinking oceanic slab beneath the surface of the earth is dragging the northern part of Iraq towards it.

 

There is a developing tear in an area between the Arabian and Eurasian continental plates called Neo Tethys oceanic slab.

 

The slab that made the floor of an ancient ocean over 66 million years ago is tearing apart between southeast Turkey and northwest Iran.

 

Now the slab is sinking into the mantle of the earth.

 

This is a complicated process requiring tens of millions

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