Question

In some plants stomata open at night give example of such plants. Explain giving reason the unusual behaviour of plants

Answer 1

cactus ,desert plants
bcoz there is no CO2 at the day time so they absorbs sunlight and at night they complete the process of photosynthesis by absorbing CO2

Answer 2

We can take example of cactus
It is mostly found in desert areas
In desert areas the temperature is very high during morning if it exchange it's gases then due to transpiration all water will be evaporated so during night time it exchange its gases and during day time it under go photosynthesis

......I hope it is correct