Q 01/05

Which planet in our solar system has the highest average surface temperature?

A) Mercury

B) Venus

C) Mars

D) Jupiter

Answer · why

B) Venus

Despite being farther from the Sun than Mercury, Venus has the hottest surface temperature due to a thick atmosphere composed mostly of carbon dioxide...

Q 02/05

What unit is used to measure the spiciness of chili peppers?

A) Kelvin

B) Brix

C) Scoville Heat Units

D) Richter

Answer · why

C) Scoville Heat Units

The Scoville scale, invented by American pharmacist Wilbur Scoville in 1912, measures the concentration of capsaicinoids, which are the chemical compo...

Q 03/05

Which layer of Earth's atmosphere is generally considered the hottest?

A) Troposphere

B) Stratosphere

C) Mesosphere

D) Thermosphere

Answer · why

D) Thermosphere

Temperatures there can pass 2,000 °C, yet a thermometer would read below freezing at night because the gas is so thin it cannot conduct heat to it.

Q 04/05

What is the theoretical lowest possible temperature, where particles have minimal kinetic energy?

A) 0 degrees Celsius

B) 0 Kelvin

C) -273.15 degrees Fahrenheit

D) -459.67 degrees Celsius

Answer · why

B) 0 Kelvin

Absolute zero is the theoretical point at which all atomic motion ceases, and it is defined as 0 Kelvin, which is equivalent to -273.15 degrees Celsiu...

Q 05/05

Which desert animal's humps are actually deposits of fat, not stores of water?

A) Camel

B) Kangaroo

C) Fennec fox

D) Oryx

Answer · why

A) Camel

The one-humped dromedary makes up 94% of the world's camels; the wild two-humped Bactrian is critically endangered with fewer than 1,000 left.