Will give brainliest! Which statement is TRUE?

1)Light waves always travel at a constant speed, but sound waves do not.

2)Waves travel at different speeds through different materials.

3)Wave speed depends on the amplitude of the wave.

4)Light waves and sound waves travel at the same constant speed.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Adoença vitiligo afeta qual doença do corpo?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?