Is Sand + H2O an element compound or mixture

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Which statement correctly compares metaphase i and metaphase ii? in metaphase ii twice as many chromosomes line up along the middle of the cell as in metaphase i. in metaphase i twice as many chromosomes line up along the middle of the cell as in metaphase ii. in metaphase ii twice as many chromosomes are pulled to opposite ends of the cell as in metaphase i. in metaphase i twice as many chromosomes are pulled to opposite ends of the cell as in metaphase ii.

What is the ratio of carbon hydrogen and oxygen in a carbohydrate?