Answer:
Stalagmites
Sinkholes
Stalacites
Explanation:
These features are created because the ground water dissolves solid rocks and move the solid rocks, dissolve solutions beneath the ground water gradually and therefore enlarging the cracks, which eventually form a cave. Ground water carries minerals which are then deposited and can form stalagmites or stalactites. If a stalactite and stalagmite combine together, they usually form a column.
Hey! Your answer would be the appearance and disappearance of group of organisms
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It is opaque because you can't see anything on the other side of the apple.
An apple is red because of the frequency of light shining on it makes it seem that it is red, as it is reflected. It seems it is red because it reflects infrared waves.
A because scientific theories can be disproven. Scientific knowledge can’t be.
The notation that is used to represent an alpha particle is 4.2 H [THAT IS, AN HELIUM ATOM].
Alpha particle is formed when a radioactive element undergoes an alpha radioactive decay. An alpha radioactive decay is the type of decay in which an atomic nucleus gives off an helium nucleus and is thereby transformed into another element, which has a mass number that is less than the original element. An alpha particle is an helium nucleus, which contains two positively charged proton and two neutral neutron; it has an overall charge of +2 and a mass number of 4.