(a) What does a plant root do in response to water? What is this phenomenon known as?
(b) What happens to the moonflower (i) during daytime, and (ii) at night? What is the phenomenon known as?

(a) What does a Mimosa pudica plant do in response to touch? What is this phenomenon known as? (b) What happens to the dandelion flower (i) during daytime, and (ii) at night? What is this phenomenon known as?

(a) What does a root do in response to gravity? What is the phenomenon known as? (b) What does a stem (or shoot) do in response to gravity? What is this phenomenon known as?

(a) What does a stem (or shoot) do in response to gravity? What is this phenomenon known as? (b) What does a root do in response to light? What is this phenomenon known as?

What is the response of stem to light ? What is this phenomenon known as ?

What is red snow phenomenon ?

What is red snow phenomenon ?

What is the response of roots to gravity? What is this phenomenon known as ?

What is lightning ? Explain the phenomenon.