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Visit a green house. Observe how …

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Visit a green house. Observe how they grow plants. Find out how they regulate the amount of light, water and carbon dioxide to grow the plant

Posted by Tejash Saikrishna Behera 3 weeks, 3 days ago

CBSE > Class 07 > Science

1 answers

Purvika Swamy 2 weeks, 2 days ago

Greenhouse is a transparent structure made of glass that aims at increasing the inner temperature of the structure. It helps to grow plants in cold weather by providing regulated conditions. i. Light: a greenhouse is constructed in such a way that it traps maximum sunlight. The walls of it reflect a large amount of trapped light. ii. Water: for regulating water requirements, capillary mats are used. These mats ensure that the plants receive adequate water supply. Also, excessive water is re-used. iii. Carbon dioxide: for circulating air properly, fans are placed horizontally that ensures plants get enough CO2. Sometimes, compressed CO2 is used.

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