Will give brainliest
which is not an example of uniformitarianism?
a. soil formed by weathering or rocks and how layers of sediment accumlate on earth's surface.
b. planting a tree after cutting one down.
c. rivers eroding valleys which build deltas gradually.
d. a volcano eruption that spews out lava which forms basalt.

B

Explanation:

Uniformitarianism is the idea that all of the natural world operates now in the same way it did in the past. The exception here is human intervention.

d is

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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