Tuesday April 23, 2019
Home Lead Story In the Video:...

In the Video: Possibilities of Ocean Floor Mapping

0
//
The reason being that around 70 percent of Earth is covered by water, most of which are very deep up to 200 meters.
Many ways wee introduced in the past to map ocean floors and the newest one is from Japan. Pixabay

By Ajay Kumar

  • From time to time Oceanographers have confirmed that we humans know so much about the Moon and Mars but we lack information of about 70 percent of our own planet, Earth.
  • The reason being that around 70 percent of Earth is covered by water, most of which go deep up to 200 meters.
  • There have been many ideas which were proposed to map the ocean floors. the latest comes from Japan. What is it- watch in the video:

Next Story

New Study Indicates, Life on Earth May Have Begun in Ponds But Not Oceans

"Our overall message is, if you think the origin of life required fixed nitrogen, as many people do, then it's tough to have the origin of life happen in the ocean," s

0
Earth
Nitrogenous oxides were likely deposited in water bodies, including oceans and ponds, as remnants of the breakdown of nitrogen in Earth's atmosphere. Pixabay

Challenging a common perception, a new study suggests primitive ponds may have provided a suitable environment for creating Earth’s first life forms, more so than oceans.

The findings published in the journal Geochemistry, Geophysics, Geosystems showed shallow water bodies could have held high concentrations of what many scientists believe to be a key ingredient for jump-starting life on Earth: nitrogen.

ocean
Scientists believe there could have been enough lightning crackling through the early atmosphere to produce an abundance of nitrogenous oxides to fuel the origin of life in the ocean. Pixabay

“Our overall message is, if you think the origin of life required fixed nitrogen, as many people do, then it’s tough to have the origin of life happen in the ocean,” said lead author Sukrit Ranjan from Massachusetts Institute of Technology (MIT). “It’s much easier to have that happen in a pond,” Ranjan said.

Nitrogenous oxides were likely deposited in water bodies, including oceans and ponds, as remnants of the breakdown of nitrogen in Earth’s atmosphere.

Atmospheric nitrogen comprises two nitrogen molecules, linked via a strong triple bond, that can only be broken by an extremely energetic event — namely, lightning.

Scientists believe there could have been enough lightning crackling through the early atmosphere to produce an abundance of nitrogenous oxides to fuel the origin of life in the ocean.

ocean
In the ocean, ultraviolet light and dissolved iron would have made nitrogenous oxides far less available for synthesising living organisms. Pixabay

But the new study found that ultraviolet light from the Sun and dissolved iron sloughed off from primitive oceanic rocks could have destroyed a significant portion of nitrogenous oxides in the ocean, sending the compounds back into the atmosphere as nitrogen.

Also Read: Trump Considers Sending Detained Illegal Migrants to Sanctuary Cities

In the ocean, ultraviolet light and dissolved iron would have made nitrogenous oxides far less available for synthesising living organisms.

In shallow ponds, however, life would have had a better chance to grow, mainly because ponds have much less volume over which compounds can be diluted. As a result, nitrogenous oxides would have built up to much higher concentrations, the study said. (IANS)

Next Story