Explanation

Riyadh Metro has been certified by Guinness World Records as the world’s longest fully driverless metro network.

The total network length is 176 kilometres (109 miles) with six lines and 85 stations.

This marks Riyadh’s rise as a global leader in smart and high-tech urban transport.

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Explanation

The first country from the European Union (EU) to introduce fuel rationing amid energy disruptions in 2026 is Slovenia.

 Additional Information:  

Slovenia imposed limits on how much fuel people could buy because of shortages and long lines at petrol stations, making it the first EU member state to use fuel rationing in response to escalating U.S.-Israeli conflict with Iran

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Explanation

Riyadh Metro has been certified by Guinness World Records as the world’s longest fully driverless metro network.

The total network length is 176 kilometres (109 miles) with six lines and 85 stations.

This marks Riyadh’s rise as a global leader in smart and high-tech urban transport.

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Explanation

The world’s first smart island monitoring system was launched in Ecuador.

The system was specifically deployed on Floreana Island in the Galápagos Archipelago in May 2026.

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Explanation

• Carl Linnaeus is known as the Father of Biological Classification (Taxonomy).
• He introduced the binomial nomenclature system (two-name system).
• This system gives every organism a Genus and Species name.
• It made classification of living organisms systematic and universal.
• His work is the foundation of modern taxonomy.

Last verified on 21-05-2026