Daily Trivia Quiz - Day 222 (2026-06-21)

Question 1

Why is an important part of mangrove carbon storage hidden outside the tree trunks?

Accepted Answer

Low-oxygen wet mud can preserve organic carbon for a long time

Answer

Mangroves store carbon in salt crystals on their leaves

Answer

Mangrove pollen fixes carbon dioxide in the air

Answer

Mangrove roots turn carbon into pure metal particles

Question 2

What is the most accurate judgment about the legendary origin stories of the word quiz?

Accepted Answer

Its true etymology is not reliably settled

Answer

Its spelling has been abandoned in modern English

Answer

It only means test in American English

Answer

It originally referred only to a math exam

Question 3

Why do plush toys often use safety eyes or embroidered eyes instead of loose button eyes?

Accepted Answer

To reduce the risk of small parts detaching and entering a child’s mouth

Answer

To make the toy glow automatically at night

Answer

To prevent fabric colors from darkening in sunlight

Answer

To make the toy heavier in a washing machine

Question 4

In the UK, what can a V sign with the back of the hand facing outward be understood as?

Accepted Answer

An offensive gesture

Answer

A formal thank-you gesture

Answer

A request for exactly two tickets

Answer

A religious prayer gesture

Question 5

How can a larger shopping cart change a shopper’s sense of “I’ve bought enough”?

Accepted Answer

It can make the cart feel less full

Answer

It makes shoppers stop buying immediately

Answer

It makes every product harder to push

Answer

It makes shoppers forget the store entrance

Question 6

What warning do raised tactile paving and warning strips at a subway platform edge mainly provide?

Accepted Answer

A tactile and visual cue that the platform edge is near

Answer

A warning that train fares are about to change

Answer

A notice about groundwater levels under the platform

Answer

A cue for the carriage air-conditioning temperature

Question 7

Feeling that you should return a gift reflects what social norm?

Accepted Answer

Norm of reciprocity

Answer

Norm of anonymity

Answer

Norm of silence

Answer

Norm of exclusion

Question 8

Why can seeing an unrelated number first influence a later estimate?

Accepted Answer

Anchoring effect

Answer

Peak-end rule

Answer

Spotlight effect

Answer

Conformity effect

Question 9

What is the main risk that city lights at night create for migrating birds?

Accepted Answer

They disrupt navigation and draw birds into hazardous areas

Answer

They instantly remove waterproofing from feathers

Answer

They turn oxygen in the air into ozone

Answer

They prevent birds from seeing the sun during the day

Question 10

What is the most counterintuitive part of the word nice in English history?

Accepted Answer

It shifted from negative meanings toward positive ones

Answer

It originally referred only to expensive food

Answer

It was invented by modern advertising

Answer

It first praised only the weather