D) pumice.
Explanation:
The rock that most likely floats on water after the eruption of Krakatoa volcano is a Pumice.
Pumice is the only rock that floats on water. It's density is less than that of water and so, it will stay afloat.
- From the given options, pumice is the only extrusive igneous rock. Volcanic eruptions are extrusive in nature.
- Granite is an intrusive plutonic rock
- Phyllite and marble are metamorphic rocks.
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Ionic bonds <span>are the type of bonds where there is </span>transfer<span> of electrons from one atom to another. The electrons are removed and from one atom and attached to another. A good example is salt which is composed of sodium and chlorine. Sodium readily loses one of its electrons and chlorine readily accepts it. Before losing the electron, sodium has a positive charge, but then becomes negatively charged after giving up the electron. Chlorine has a positive charge before gaining the electron but becomes negatively charged after gaining the electron. These opposite charges between sodium and chlorine attract the two elements together to form the ionic bond.</span>
Answer is concentric circles
A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components. Some examples of mixtures are a tossed salad, salt water and a mixed bag of M&M's candy.