Quiz Name : Are you as smart as a grade 9 student?

Week : V8

MA 1. A shopkeeper buys a school bag for $800 and sells it for $920. What is the percentage profit?

A - 12%
B - 15%
C - 18%
D - ---

Korrekt svar : B - 15%


BI 2. A scientist isolates a microorganism from spoiled bread. It appears as a multicellular filamentous structure and reproduces by producing spores. The scientist also notes that this microorganism can be used to produce antibiotics in the lab. Which microorganism is it?

A - Bacteria
B - Fungi
C - Virus
D - ---

Korrekt svar : B - Fungi


GEO 3. A plateau region has an average elevation of 1,500 meters above sea level, receives moderate rainfall, and has rich deposits of iron and bauxite. Farmers in the area practice terrace farming to prevent soil erosion. Which of the following statements is correct?

A - Plateaus are low-lying areas prone t...read more A - Plateaus are low-lying areas prone to flooding.
B - This plateau is a mineral-rich eleva...read more B - This plateau is a mineral-rich elevated region suitable for both agriculture and mining.
C - Plateaus always have dense forests a...read more C - Plateaus always have dense forests and heavy rainfall.
D - ---

Korrekt svar : B - This plateau is a mineral-rich elevated region suitable for both agriculture and mining.


CHEM 4. A student is performing an experiment that requires heating a liquid in a test tube using a Bunsen burner. Which of the following safety rules is correct?

A - Point the open end of the test tube ...read more A - Point the open end of the test tube towards yourself while heating.
B - Wear safety goggles and hold the tes...read more B - Wear safety goggles and hold the test tube with a test tube holder while heating.
C - Leave the Bunsen burner flame unatte...read more C - Leave the Bunsen burner flame unattended while heating.
D - ---

Korrekt svar : B - Wear safety goggles and hold the test tube with a test tube holder while heating.


PHY 5. A concave mirror is used to focus sunlight to a small point to light a piece of paper. Which property of light is being utilized in this process?

A - Refraction
B - Reflection
C - Dispersion
D - ---

Korrekt svar : B - Reflection


SS 6. Which ancient civilization is credited with creating the first system of writing called cuneiform?

A - Ancient Egypt
B - Mesopotamia
C - Indus Valley
D - ---

Korrekt svar : B - Mesopotamia


PE 7. A player twists their ankle during a football match and the area becomes swollen and painful. What is the first step in basic first aid for a sprained ankle?

A - Apply a cold compress and elevate th...read more A - Apply a cold compress and elevate the ankle.
B - Rub the ankle vigorously to reduce p...read more B - Rub the ankle vigorously to reduce pain.
C - Ignore it and continue playing.
D - ---

Korrekt svar : A - Apply a cold compress and elevate the ankle.


MA 8. A shopkeeper marks a jacket at $2,500. He gives a 20% discount to a customer but still makes a 25% profit on the cost price. What is the cost price of the jacket?

A - $1,600
B - $1,667
C - $2,000
D - ---

Korrekt svar : B - $1,667


BI 9. A patient is suffering from a bacterial infection that causes severe throat pain, fever, and swollen lymph nodes. The doctor prescribes antibiotics to treat the infection. Which of the following statements is correct?

A - The infection is caused by a virus, ...read more A - The infection is caused by a virus, so antibiotics will not work.
B - The infection is caused by bacteria,...read more B - The infection is caused by bacteria, so antibiotics can help cure it.
C - The infection is caused by fungi, so...read more C - The infection is caused by fungi, so antibiotics are the best treatment.
D - ---

Korrekt svar : B - The infection is caused by bacteria, so antibiotics can help cure it.


GEO 10. A region experiences heavy rainfall throughout the year, has dense forests, and is located near the equator. The soil is rich in organic matter but prone to leaching. Which type of climate and soil does this region most likely have?

A - Tropical rainforest climate with lat...read more A - Tropical rainforest climate with laterite soil
B - Desert climate with sandy soil
C - Temperate climate with black soil
D - ---

Korrekt svar : A - Tropical rainforest climate with laterite soil


CHEM 11. Which of the following chemical equations is balanced correctly?

A - H₂ + O₂ → H₂O
B - 2H₂ + O₂ → 2H₂O
C - H₂ + O₂ → 2H₂O
D - ---

Korrekt svar : B - 2H₂ + O₂ → 2H₂O


PHY 12. A convex lens is used in a magnifying glass to view small objects. If the object is moved closer to the lens, how does the size and clarity of the image change?

A - The image becomes larger and clearer...read more A - The image becomes larger and clearer.
B - The image becomes larger but may bec...read more B - The image becomes larger but may become blurry if too close.
C - The image becomes smaller and cleare...read more C - The image becomes smaller and clearer.
D - ---

Korrekt svar : B - The image becomes larger but may become blurry if too close.


SS 13. Which European explorer is credited with being the first to sail directly from Europe to India by going around the southern tip of Africa?

A - Christopher Columbus
B - Vasco da Gama
C - Ferdinand Magellan
D - ---

Korrekt svar : B - Vasco da Gama


PE 14. During a long football practice on a hot day, which of the following is the best way to prevent dehydration?

A - Drink small amounts of water regular...read more A - Drink small amounts of water regularly throughout practice.
B - Wait until you feel very thirsty, th...read more B - Wait until you feel very thirsty, then drink a large amount of water.
C - Only drink water after practice is o...read more C - Only drink water after practice is over.
D - ---

Korrekt svar : A - Drink small amounts of water regularly throughout practice.


MA 15. Two partners invest money in a business in the ratio 3 : 5. At the end of the year, they earn a total profit of $4,800. How much profit does the partner who invested more money receive?

A - $1,800
B - $2,400
C - $3,000
D - ---

Korrekt svar : C - $3,000