Radioactive elements comprise a majority of the "ACTINIDES"
These are elements in the bottom row of the periodic table.
You would add H+ ions if you added an acid. Thus lowering the pH.
Answer:
Radioisotopes are radioactive isotopes of an element
Explanation: Radioactive isotopes are detected by: photographic film.
a cloud or bubble chamber.
a liquid scintillation detector.
a Geiger-Muller counter.
Answer:
Blending inheritance leads to the averaging out of every characteristic, which as the engineer Fleming Jenkin pointed out, would make natural selection impossible if blending were the mechanism of inheritance.
Explanation:
Answer:
rapid burial of vast amounts of vegetation
Explanation:
The organic matter is always decomposing, just that it depends on the conditions at what kind of a rate the decomposition will happen. If the climate is warmer and humid, then the decomposition is very quick. This results in a rapid burial of enormous amounts of vegetation. As the vegetation dies out, it piles up constantly, decomposes very quickly, and if there is something that can cover it, like mud for example, it will be buried in the ground. This is actually how the big deposits of coal have got the basis to form in the Carboniferous period.
