Daily Trivia Quiz - Day 172 (2026-04-09)

Question 1

A sensitive plant folds its leaves when disturbed, but after harmless drops hit it again and again, it may stop reacting. What does that change show?

Accepted Answer

Habituation

Question 2

Smooth, lens-shaped clouds can hover near mountains and look almost motionless for long periods. Why do they stay in one place?

Accepted Answer

They form in standing waves of air

Question 3

In the early 1900s, women sometimes used a fashion accessory as an emergency defense tool on city streets. What was it?

Accepted Answer

A hatpin

Question 4

When scientists clipped sagebrush leaves in experiments, nearby plants became harder for insects to attack. How were the neighbors warned?

Accepted Answer

Airborne chemicals

Question 5

Why do snow fences work even when they are set back from the road instead of right beside it?

Accepted Answer

They make snow drift earlier

Question 6

Long before recorded sound effects, theaters could make an audience think a storm had arrived by shaking what?

Accepted Answer

A sheet of metal

Question 7

Why do people so often "see" faces in wall sockets, car grilles, and burnt toast?

Accepted Answer

The brain is tuned for faces

Question 8

In curling, why might a team deliberately avoid scoring even when it has the chance?

Accepted Answer

To keep the last stone

Question 9

After a thaw, strong wind can sometimes roll loose snow across a field into hollow tubes. Why are many snow rollers empty in the middle?

Accepted Answer

The inner layer falls out

Question 10

Japanese honeybees can kill a giant hornet without stinging it to death. What do the bees do instead?

Accepted Answer

They overheat it