Which statements about viruses are true? Select all that apply. Viruses can be seen with a compound light microscope.

Viruses vary greatly in size and structure.

Some viruses contain RNA instead of DNA.

Some viruses use the cell's machinery to replicate more viruses.

Plant viruses can infect animals if ingested.

Bacteriophages are viruses that infect bacteria, plants, and animals.

Viruses can be seen with a compound light microscope.

Viruses vary greatly in size and structure

Some viruses use the cell's machinery to replicate more viruses

Explanation:

Answer : The bonds present in silicon carbide (SiC) are, covalent bond.

Explanation:

Ionic bond : It is defined as the bond that is formed by complete transfer of electrons from one atom to another atom.

That means, the atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom.

The ionic bond is usually formed between a metal and a non-metal.

Covalent bond : It is defined as the bond which is formed when sharing of electrons takes place between the atoms.

This is usually formed between two non-metals.

The given compound is, silicon carbide (SiC).

In this pair, silicon is a non-metal and carbon is also non-metal. So, silicon and carbon will form a covalent bond.

Silicon carbide is crystallizes in a close packed structure which is covalently bonded to each other.

Hence, the bonds present in silicon carbide (SiC) are, covalent bond.