Asolid object has the volume of 10.0cm3 . it has the mass of 86g. what is its density?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

What characteristic make legumes a good food source for food insecure populations

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.