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Question 1: Which company produced the first commercially successful light bulb?
Question 2: What company was originally known as "Blue Ribbon Sports"?
Blue Ribbon Sports was founded on January 25, 1964, by Bill Bowerman and Phil Knight. The company officially became Nike, Inc. on May 30, 1971, and is now one of the world's largest suppliers of athletic shoes and apparel.
Question 3: Why was the ancient city of Babylon famous?
The Hanging Gardens of Babylon were considered one of the Seven Wonders of the Ancient World. According to ancient sources, they were a remarkable feat of engineering with multi-leveled gardens containing a wide variety of trees, shrubs, and vines. They were supposedly built by King Nebuchadnezzar II around 600 BCE.
Question 4: Which bone is the longest in the human body?
The femur, or thigh bone, is not only the longest but also the strongest bone in the human body. It carries the weight of the body and allows for a wide range of motion at the hip and knee joints.
Question 5: How long does the Chinese New Year festival typically last?
The Chinese New Year festival begins on the first day of the lunar calendar and ends with the Lantern Festival on the 15th day. It is the longest and most important celebration in the Chinese calendar.
Question 6: The Pythagorean theorem is used to find which side of a right-angled triangle?
The Pythagorean theorem states that the square of the length of the hypotenuse (the side opposite the right-angle) is equal to the sum of the squares of the other two sides' lengths. The theorem was named after the Greek mathematician Pythagoras.
Question 7: Why are koalas' fingerprints nearly indistinguishable from humans?
Convergent evolution is the process in which two unrelated species independently evolve similar traits to adapt to similar environments or ecological niches. In the case of koalas, their fingerprints help them grip branches and pick leaves effectively.
Question 8: In which year was Elvis Presley born?
Elvis Presley was born on January 8, 1935 in Tupelo, Mississippi. He is widely regarded as one of the most significant cultural icons of the 20th century and is often referred to as the "King of Rock and Roll".
Question 9: The Earth is protected from solar winds and harmful cosmic radiation by which layer?
The Earth's magnetosphere is a region of space around the Earth controlled by its magnetic field. It deflects most of the charged particles carried by solar winds from the sun. Without the magnetosphere, life on Earth would be exposed to high levels of radiation.
Question 10: Where is the world's tallest national flagpole located?
The Jeddah Flagpole, standing at 561 ft (171 m), is the tallest free-standing flagpole in the world. It flies a 570 m2 (6,100 sq ft) Saudi Arabian flag. The flagpole was erected in 2014 to commemorate Saudi Arabia's 84th National Day.
Just a logical guess
The only difference I can see between A and B is koalas climb trees looking for breakfast. Our ancestors climbed trees too — to avoid being breakfast for a passing predator.
️Port 
Although Thomas Edison is often credited with the invention of the light bulb, it was the improvement of the incandescent bulb for which he is most famous. Thomas Edison's Electric Light Company, later known as Edison General Electric and then merged to form General Electric, produced the first commercially successful light bulb in the late 19th century.