1. Which of the following is an example of a chemical change?
A. Ice melting
B. Water boiling
C. Rusting of iron
D. Breaking a glass
Answer: C
Rationale: The rusting of iron is a chemical change because it involves the
formation of a new substance (iron oxide) as a result of a reaction with
oxygen. Melting, boiling, and breaking are physical changes.
2. Which of the following best describes a "bull market"?
A. A market in which stock prices are falling
B. A market in which stock prices are rising
C. A market where trading is minimal
D. A market dominated by small-cap stocks
Answer: B
Rationale: A bull market refers to a market where stock prices are rising or
are expected to rise. It reflects investor optimism and confidence.
3. Who is known for developing the theory of general relativity?
A. Nikola Tesla
B. Albert Einstein
,C. Marie Curie
D. Isaac Newton
Answer: B
Rationale: Albert Einstein developed the theory of general relativity, which
describes the gravitational force as a curvature of space and time caused by
mass.
4. Which of the following best describes the role of enzymes in biological
reactions?
A. Enzymes increase the energy required for a reaction
B. Enzymes decrease the speed of the reaction
C. Enzymes speed up the reaction by lowering activation energy
D. Enzymes are consumed in the reaction
Answer: C
Rationale: Enzymes are biological catalysts that speed up chemical
reactions by lowering the activation energy required. They are not
consumed in the process.
5. Which of the following countries is a member of the European Union
(EU)?
A. Norway
B. Switzerland
C. United Kingdom
D. Germany
Answer: D
, Rationale: Germany is a member of the European Union. Norway and
Switzerland are not EU members, and the United Kingdom left the EU in
2020.
6. Which of the following elements is a noble gas?
A. Oxygen
B. Nitrogen
C. Neon
D. Hydrogen
Answer: C
Rationale: Neon is a noble gas. Noble gases are chemically inert and do not
readily form compounds with other elements. Oxygen, nitrogen, and
hydrogen are not noble gases.
7. The GDP of a country is defined as the total value of:
A. Only final goods and services produced within a country's borders
B. All goods and services produced by a country's citizens, regardless of
location
C. Only tangible products sold in the market
D. All investments made by the government
Answer: A
Rationale: Gross Domestic Product (GDP) measures the total value of all
final goods and services produced within a country’s borders over a specific
period of time. It excludes goods and services produced outside the
country, even if they are produced by citizens of the country.
A. Ice melting
B. Water boiling
C. Rusting of iron
D. Breaking a glass
Answer: C
Rationale: The rusting of iron is a chemical change because it involves the
formation of a new substance (iron oxide) as a result of a reaction with
oxygen. Melting, boiling, and breaking are physical changes.
2. Which of the following best describes a "bull market"?
A. A market in which stock prices are falling
B. A market in which stock prices are rising
C. A market where trading is minimal
D. A market dominated by small-cap stocks
Answer: B
Rationale: A bull market refers to a market where stock prices are rising or
are expected to rise. It reflects investor optimism and confidence.
3. Who is known for developing the theory of general relativity?
A. Nikola Tesla
B. Albert Einstein
,C. Marie Curie
D. Isaac Newton
Answer: B
Rationale: Albert Einstein developed the theory of general relativity, which
describes the gravitational force as a curvature of space and time caused by
mass.
4. Which of the following best describes the role of enzymes in biological
reactions?
A. Enzymes increase the energy required for a reaction
B. Enzymes decrease the speed of the reaction
C. Enzymes speed up the reaction by lowering activation energy
D. Enzymes are consumed in the reaction
Answer: C
Rationale: Enzymes are biological catalysts that speed up chemical
reactions by lowering the activation energy required. They are not
consumed in the process.
5. Which of the following countries is a member of the European Union
(EU)?
A. Norway
B. Switzerland
C. United Kingdom
D. Germany
Answer: D
, Rationale: Germany is a member of the European Union. Norway and
Switzerland are not EU members, and the United Kingdom left the EU in
2020.
6. Which of the following elements is a noble gas?
A. Oxygen
B. Nitrogen
C. Neon
D. Hydrogen
Answer: C
Rationale: Neon is a noble gas. Noble gases are chemically inert and do not
readily form compounds with other elements. Oxygen, nitrogen, and
hydrogen are not noble gases.
7. The GDP of a country is defined as the total value of:
A. Only final goods and services produced within a country's borders
B. All goods and services produced by a country's citizens, regardless of
location
C. Only tangible products sold in the market
D. All investments made by the government
Answer: A
Rationale: Gross Domestic Product (GDP) measures the total value of all
final goods and services produced within a country’s borders over a specific
period of time. It excludes goods and services produced outside the
country, even if they are produced by citizens of the country.
