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A rock originally had 1500 atoms of U-235 and it now has 750 how old is it?
For a rock to have started with 1500 atoms of any element and now have 750 it has undergone radioactive decay equal to one full half life (i.e. there are half the number of atoms now than at the beginning).Uranium-235 has a half life of 7.038×108 years.As such, the rock is 7.038×108 or 703 million years old.
If we didn't have copper what would life be like?
Life wouldn't be the same without copper, it is a necessity to continue living life in the ways we do now Life wouldn't be the same without copper, it is a necessity to continue living life in the ways we do now
How did life on earth influence the development on earth atmosphere?
because of the first form of life that appeared on Earth and envolved. The new organism called cyanobacteria, used carbon dioxide and water to produce oxygen as a waste product. The oxygen accumulated in the atmosphere, and some of them were converted by the sun into ozone.
Does earth have carbon dioxide in its atmosphere?
Yes, Earth's atmosphere contains carbon dioxide (CO2), which is a naturally occurring gas essential for life. However, human activities like burning fossil fuels have increased CO2 levels, leading to concerns about climate change.
Do you live twice on earth?
Yes...After We died we will Be reborn on earth and have a different life but everything will be the Same and you'll won't remember you'll first life on earth when we be reborn this will be like our first life on earth but there won't be any video games or same tv show like we do now we will have same family but you'll be in the same city like you are now but you are going to be different school then right after you died from your second life on earth then you'll be in heaven or hell
How does topography affect human life?
Topography shows elevation and surface features. It has had an affect on human life because now, with topography, we know where elevation is and how high it is.
How does topography affect humans?
Topography shows elevation and surface features. It has had an affect on human life because now, with topography, we know where elevation is and how high it is.
What peninsula is Rome located on?
a peninsula which is now known as Italy
How was human life long ago?
shorter than now
How do landforms affect life in southern Europe?
N Don't now
How did the glasses affect your life?
It's just like your old life.......only now you have glass by your eyes.
The largest peninsula in the world birthplace of islam?
The Arabian Peninsula which is Saudi Arabia now
How did changes in the enviorment affect the way of life of the ancient Indians?
we have electricity now
How has thomas Edison invention affect life then and now?
because we use what he made
Why was the Arabian peninsula named the Arabian peninsula?
Because the "Arabian Peninsula" is dominantly and mainly occupied by "Arabians" for a couple of millennium's now.
Why color affect human behavior?
For now my view is--- Its now traditional Human nature's Beginning my view is my views in a Question Why ADAM'S 1st son kill 2nd one ?My thinking is prudence & overproduce also Human Nature's.Overproduces Human-mind effect by color.
What is an island called now that it is now apart of the mainland?
An island that is now connected to the mainland is typically referred to as a peninsula. This transition can happen due to natural processes like sediment buildup or human-made activities like land reclamation projects.
