1.
How many stars does the American flag have?
Correct Answer
D.
Explanation
The American flag has 50 stars.
2.
Which river runs through London?
Correct Answer
A. Thames
Explanation
The correct answer is Thames. The Thames is a major river in England that runs through London. It is the longest river entirely in England and has played a significant role in the history and development of the city. The river has been an important transportation route, a source of water, and a symbol of London's identity. Many iconic landmarks, such as the Tower Bridge and the Houses of Parliament, are located along the banks of the Thames.
3.
In April 2010, where did a volcano erupt that caused hundreds of flights to be cancelled?
Correct Answer
B. Iceland
Explanation
In April 2010, a volcano erupted in Iceland, causing hundreds of flights to be cancelled. The eruption occurred at Eyjafjallajökull volcano, which spewed a massive ash cloud into the atmosphere. This ash cloud posed a significant risk to aircraft as it can damage engines and reduce visibility. As a result, many flights in and out of Iceland, as well as flights across Europe, were cancelled or diverted to avoid the ash cloud. The eruption had a widespread impact on air travel, leading to significant disruptions and financial losses for airlines and passengers.
4.
How many grams are there in a kilogram?
Correct Answer
D.
Explanation
There are 1000 grams in a kilogram.
5.
What is the name of the pigment found in all plants that causes them to be green?
Correct Answer
C. ChloropHyll
Explanation
Chlorophyll is the correct answer because it is the pigment found in all plants that gives them their green color. It is essential for photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll absorbs light energy and uses it to produce glucose and oxygen, which are vital for the plant's growth and survival. Without chlorophyll, plants would not be able to carry out photosynthesis and would not be green.
6.
Palaeontology is the study of __________.
Correct Answer
B. Prehistoric life
Explanation
Palaeontology is the study of prehistoric life, which includes the study of fossils and ancient organisms that lived on Earth millions of years ago. This field of science focuses on understanding the evolution and diversity of life forms that existed before the appearance of humans. It involves analyzing fossils, their preservation, and the geological context in which they are found to reconstruct the history of life on Earth.
7.
The name "hippopotamus" comes from the Greek word meaning ________.
Correct Answer
A. Water horse
Explanation
The name "hippopotamus" comes from the Greek word meaning "water horse". This is because the word "hippo" means "horse" in Greek and "potamus" means "water". Therefore, the name "hippopotamus" translates to "water horse" in English.
8.
Where was the soccer World Cup in 2010 hosted?
Correct Answer
D. South Africa
Explanation
In 2010, the soccer World Cup was hosted in South Africa.
9.
In which decade was cling film (plastic wrap) invented?
Correct Answer
A. 1940s
Explanation
Cling film, also known as plastic wrap or Saran wrap, was invented in the 1940s. The invention is attributed to a team of researchers at Dow Chemical who discovered polyvinylidene chloride (PVDC) in 1933. This material was later developed and marketed as Saran wrap in the 1940s, becoming a popular household product for preserving food by keeping it fresh.
10.
What is the name of the pigment in the human body that determines hair and skin color?
Correct Answer
D. Melanin
Explanation
Melanin is the correct answer because it is the pigment in the human body that determines hair and skin color. Melanin is produced by specialized cells called melanocytes, and it is responsible for the range of colors seen in different individuals. The amount and type of melanin present in the skin and hair determine the specific coloration.