How do you measure mass, volume, and density of various types of objects? because the rock is irregularly shaped, you used the method to measure its volume.

Ineed to know why d is the correct answer asap

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

This is the process of making a prediction based on the results of prior observations of similar events.