How do trees give earth all its oxygen?

How do trees give earth all its oxygen?

•All of earth's oxygen does not come from trees.

•Rather, the atmospheric oxygen that we depend on as humans comes predominantly from the ocean.

•According to a study, about 70% of the oxygen in the atmosphere comes from marine plants and plant-like organisms.

•These ocean-living plants release molecular oxygen as a waste product of photosynthesis (as do most plants).

•In photosynthesis, plants capture sunlight and use its energy to split carbon dioxide and water, making sugar for itself and releasing oxygen as a by-product.

•The dominance of ocean life as earth's top oxygen producer makes sense when you consider that the majority of the earth is covered with ocean.

•Of the different types of marine life providing oxygen, the dominant class is phytoplankton.

•Phytoplankton are microscopic photosynthesizing organisms that live in water.

•Phytoplankton includes cyanobacteria, green algae, diatoms, and dinoflagellates.

•Although too small to be visible to the human eye by itself, when many phytoplankton clump together they look like green ocean slime.

•The oxygen we depend on from breath to breath is provided mostly by a vast army of invisible sea creatures.

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Why do the Indian telecom operators offer their services with 28 days validity, not 30 days?😡😡

Here telecom operator are very clever, b ecause telecom operators want to earn money of 13 months instead of 12 months. Let do the calculation and find out why telecom operators are offering 28 days validity. Each month they get 2 days more, therefore in a year they get additional 24 days. There are 7 month which has 31 days so they get additional 7 days.Now in case of February ,it has only 28 days not 30. So the total number of days they get are=24+7-2=29 days. So if you recharge 12 times then more 29 days are left in a year.🤔🤔 Means for another 29 days you have to recharge from that telecom operator.😫😫 So you have to recharge 13 times in a year instead of 12 times in a year. So telecom operators provide 28 days validity only. First one telecom operator started and then another telecom operators also understood this concept and they also applied 28 days validity both in data packs and voice packs.😱😱😱

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