Answer:
single-celled micro-organisms
Explanation:
The first living things on Earth, single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago, just a few hundred million years after the formation of the Earth itself.
Answer:
The volume of the erupted magma is 0.09 cubic km.
Explanation:
Since we have all values provided, and the requirement is that the result is in km, then we just need to convert all values in km.
Length - 45 km
Width - 400 m = 0.4 km
Thickness/Height - 5 m = 0.005 km
Now that we have all values converted to km, we just simply need to multiply them all and we will get the result in km:
45 x 0.4 x 0.005 = 0.09
We get a result of 0.09, and since it is the volume in question it is 0.09 cubic km.
Lithosols, Cambisols, Nitosols, Vertisols, Xerosols, Solonchaks, Fluvisols and Luvisols cover more than 80% of the country, and are the most important soils. Vertisols are very important soils in Ethiopian agriculture.