A white icy layer on leaves after a cold night may indicate what?
Answer and explanation
Correct answer: Frost
On a cold night, if the leaf surface temperature falls below freezing, water vapour may deposit directly as tiny ice crystals. This is called frost, so the white icy coating indicates frost. Dew forms as liquid water droplets, not as icy crystals. Exam tip: liquid droplets indicate dew, while white ice crystals indicate frost.
Frequently asked questions
What is the correct answer to this question?
Frost
Why is this the correct answer?
On a cold night, if the leaf surface temperature falls below freezing, water vapour may deposit directly as tiny ice crystals. This is called frost, so the white icy coating indicates frost. Dew forms as liquid water droplets, not as icy crystals. Exam tip: liquid droplets indicate dew, while white ice crystals indicate frost.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Forms of condensation: dew, frost, fog, and mist.
