Most plants largely uptake Carbon dioxide (CO{-2})and release oxygen during the day (photosynthesis) and uptake oxygen and release CO{-2} during the night (respiration). Some plants such as Peepal tree can uptake CO{-2} during the night as well because of their ability to perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM).
However, it is not true that they release large amounts of oxygen during the night. CAM is one of the three types of photosynthesis pathways occurring commonly in plants; the other two being C3 and C4 pathways.
Of these, C3 is the most common among land plants. CAM occurs primarily in desert plants and epiphytes (plants that live on other plants, usually large trees). CAM plants do not open their stomata during the day in order to minimise water loss. During the night, they open their stomata and fix CO{-2} in the form of malate .
During the day, they breakdown the malate and use the released CO2 through Kalvin cycle to produce sugars, similar to C3 plants. However, CAM is an energy inefficient reaction and hence plants use CAM only during certain conditions.
Peepal tree is a hemi-epiphyte in its native habitat i.e. the seeds germinate and grow as an epiphyte on other trees and then when the host-tree dies, they establish on the soil. It has been suggested that when they live as epiphyte, they use CAM pathway to produce carbohydrates and when they live on soil, they switch to C3 type photosynthesis.
So, Peepal tree would either release or not release CO{-2} in the night depending on if they are epiphytic or not. For other CAM plants, it would depend on if they have adequate water or not, or other environmental factors.
AnswerPeepal TreePeepal too is a veritable storehouse of pure air, emitting oxygen round-the-clock. If there is no Peepal tree around the house horticulturists suggest that it would be beneficial to keep a couple of Peepal plants in pots, inside or outside the house, to rid the interiors of pollution.Ref: page70Hindu Rites, Rituals, Customs & Traditions By Prem P. Bhalla
Every day the hour had travels once round the clock in the morning and one round the clock in the afternoon, so it travels twice round the clock in 1 day. There are 7 days in a week, thus the hour hand travels 7 x 2 = 14 times round the clock in a week.
The Clock Goes Round and Round - 1937 is rated/received certificates of: USA:Approved USA:Passed (National Board of Review)
24
Clock
ages ago
Clash of Wings - 1998 Round the Clock Bombing 1-7 was released on: USA: 1998
Bill Haley and the Comets
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Dog the Bounty Hunter - 2003 The Montrose Files Round the Clock was released on: USA: 16 March 2011
Big Shrimpin' - 2011 Shrimpin' 'Round the Clock 1-2 was released on: USA: 24 November 2011
The RAZO RG8 JDM Round Clock features internal battery power, which means there is no complicated installation required.