501. Which country on 20 January 2021 has re-joined the Paris Agreement?
C. United States
D. United Kingdom
502. Joe Biden on 20 January 2021 became the _____ president of the United States.
503. In December 2020, it was noted that Pfizer vaccine may not be suitable for people who are prone to
A. catching flu
B. high blood pressure
C. serious allergic reactions
504. Currently, about how much world’s goods trade (by volume) is carried on ships?
505. According to Pfizer pharmaceutical company, their Covid-19 vaccine has ______ effective rate.
506. Neom City is located on the coast of ____ Sea?
A. Persian Gulf
B. Gulf of Oman
C. Dead Sea
D. Red Sea
507. Meaning of Neom the name of new proposed smart city in Saudi Arabia?
A. New Era
B. New world
C. New Arabia
D. New Future
508. The Line is a proposed smart city in Saudi Arabia is located in the area of________?
509. What is the theme of the International Day of Action for Rivers 2021?
A. Rights of Rivers
B. Rivers for Life
C. Positive Rivers
D. Water & Climate
510. Who has become the highest player to score 770 goals in Football History?
A. Cristiano Ronaldo
B. Lionel Messi
D. Joseph Bickan
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