Explanation

Russia had the largest population among European countries.

Explanation

The Pfizer vaccine requires two doses, ideally 21 days apart.

That being said, the vaccine has shown to have a high efficacy rate after a single dose, up to 85 percent , according to a 2021 study published in the Lancet.

Explanation

Fur means بال یا پشم 

Explanation

International Development Association

The International Development Association (IDA) is the part of the World Bank that helps the world's poorest countries. 

Explanation

Stock market falling is called bearish

Explanation

 A blue whale can grow up to 100 feet long and weigh upwards of 200 tons.

Explanation

Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups.

Explanation

Twitter messages are called: Tweets

Logo of Twitter is: white X

Twitter launched on: 21 March 2006

Explanation

Pulley is a wheel with a grooved rim around which a cord passes, which acts to change the direction of a force applied to the cord and is used to raise heavy weights.

Explanation

Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients.

Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.