Daily Trivia Quiz - Day 208 (2026-06-07)

Question 1

Why do pigeons seem to bob their heads while walking?

Accepted Answer

They hold the head still briefly to stabilize the view

Answer

They pump air through their lungs with each step

Answer

They use the beak as a counterweight for flight muscles

Answer

They are tasting scent trails on the pavement

Question 2

Why do some city pigeons end up with badly injured or missing toes?

Accepted Answer

Thread and human hair can tighten around their feet

Answer

Pavement naturally dissolves pigeon claws

Answer

Bread causes their toes to be shed each winter

Answer

Young pigeons are born without usable toes

Question 3

Why can spraying repellent around some indoor ants accidentally spread the problem?

Accepted Answer

Some colonies may split and form new nesting groups

Answer

Repellent makes every ant grow wings overnight

Answer

Spray creates extra food inside the wall

Answer

Ants can turn dried spray into eggs

Question 4

Stainless steel is used in almost all surgical instruments. What property — beyond rust resistance — makes it ideal for surgery?

Accepted Answer

It can be repeatedly sterilized without degrading

Answer

It's non-magnetic so it doesn't interfere with MRI machines

Answer

It's lighter than other metals of the same strength

Answer

It doesn't conduct heat, protecting surrounding tissue

Question 5

Stainless steel doesn't rust because of one specific element in its alloy. What is it?

Accepted Answer

Chromium

Answer

Nickel

Answer

Carbon

Answer

Titanium

Question 6

Glass recycling is famously efficient — recycled glass can be used to make new glass indefinitely. Why doesn't this happen as often as it could?

Accepted Answer

Contamination from mixed glass colors lowers the quality of recycled glass

Answer

Recycled glass produces more CO₂ during melting than virgin materials

Answer

Glass loses structural integrity after the first recycling cycle

Answer

Most recycled glass is too thin to be remolded into containers

Question 7

Tempered glass — used in car side windows and many glass screen protectors — shatters into small pebbles instead of sharp shards. What process creates this behavior?

Accepted Answer

Rapid cooling that puts the outer layers under compression

Answer

Adding a laminate film that holds fragments together on impact

Answer

Infusing the glass with a polymer that changes its fracture pattern

Answer

Slowly annealing the glass to remove all internal stress

Question 8

Rubber bands lose their elasticity over time and eventually crumble when left exposed to air. What mainly causes this degradation?

Accepted Answer

Ozone and oxygen attack the polymer chains in rubber

Answer

Moisture washes the elastic fibers out of the rubber

Answer

The rubber absorbs nitrogen from the air and hardens

Answer

Dust particles cut the rubber surface at a microscopic level

Question 9

What everyday bathroom item helped introduce nylon to consumers before nylon stockings became famous?

Accepted Answer

Toothbrush bristles

Answer

Shower curtains

Answer

Soap dishes

Answer

Toilet seats

Question 10

What makes hook-and-loop tape useful as an alternative to buttons on clothing?

Accepted Answer

It fastens with broad pressure, not fine finger motion

Answer

It uses tiny magnets that align the fabric automatically

Answer

It creates a permanent seal after the first wash

Answer

It works only when sewn into elastic fabric