Science & Nature: General Knowledge

Question 1

How many bones does an adult human body have?

Accepted Answer

206

Answer

176

Answer

226

Answer

256

Question 2

What is the largest organ in the human body?

Accepted Answer

Skin

Answer

Liver

Answer

Lungs

Answer

Brain

Question 3

What is the closest star to Earth (after the Sun)?

Accepted Answer

Proxima Centauri

Answer

Sirius

Answer

Betelgeuse

Answer

Vega

Question 4

What gas do plants absorb from the atmosphere during photosynthesis?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Nitrogen

Answer

Hydrogen

Question 5

How long does it take light from the Sun to reach Earth?

Accepted Answer

About 8 minutes

Answer

About 2 minutes

Answer

About 30 minutes

Answer

About 2 hours

Question 6

What is the world's largest mammal?

Accepted Answer

Blue whale

Answer

African elephant

Answer

Sperm whale

Answer

Giraffe

Question 7

What is DNA an abbreviation of?

Accepted Answer

Deoxyribonucleic acid

Answer

Dynamic Nucleic Acid

Answer

Dioxyribonucleic acid

Answer

Dual Nucleic Array

Question 8

Which planet is known as the Red Planet?

Accepted Answer

Mars

Answer

Jupiter

Answer

Saturn

Answer

Venus

Question 9

What is the name of the layer of gases surrounding a planet?

Accepted Answer

Atmosphere

Answer

Biosphere

Answer

Hydrosphere

Answer

Lithosphere

Question 10

How many chambers does the human heart have?

Accepted Answer

4

Answer

2

Answer

3

Answer

6

Question 11

Which animal has the longest lifespan?

Accepted Answer

Ocean quahog clam

Answer

Galapagos tortoise

Answer

Greenland shark

Answer

Bowhead whale

Question 12

What causes a rainbow to appear?

Accepted Answer

Refraction and dispersion of light through water droplets

Answer

Reflection of light off water droplets

Answer

Sunlight hitting ice crystals

Answer

Temperature differences in the atmosphere

Question 13

What is the powerhouse of the cell?

Accepted Answer

Mitochondria

Answer

Nucleus

Answer

Ribosome

Answer

Cell membrane

Question 14

Which sense uses olfactory receptors?

Accepted Answer

Smell

Answer

Sight

Answer

Taste

Answer

Hearing

Question 15

What is the most abundant gas in Earth's atmosphere?

Accepted Answer

Nitrogen

Answer

Oxygen

Answer

Carbon dioxide

Answer

Argon

Question 16

What do caterpillars transform into?

Accepted Answer

Butterflies or moths

Answer

Dragonflies

Answer

Beetles

Answer

Flies

Question 17

What is the speed of sound in air at sea level (approximately)?

Accepted Answer

343 m/s

Answer

500 m/s

Answer

1,000 m/s

Answer

3,000 m/s

Question 18

Which organ filters blood and produces urine?

Accepted Answer

Kidneys

Answer

Liver

Answer

Spleen

Answer

Pancreas

Question 19

What is bioluminescence?

Accepted Answer

Light produced naturally by living organisms

Answer

The reflection of moonlight off water

Answer

The glow of radioactive materials

Answer

Light produced by burning chemicals

Question 20

How many eyes does a spider typically have?

Accepted Answer

8

Answer

2

Answer

4

Answer

6