Hypothesize what would happen if most of the world's phytoplankton and seaweed disappeared? HURRY I NEED THIS NO PLEASE.

Possible rapid deterioration of natural habitats where phytoplankton and seaweed exist.

Explanation:

Certain basic building blocks are needed for nautical environments to thrive. Assuming, in this context, without most of a certain type of oceanic species, the remaining habitats will suffer.

Have you ever noticed if the salt you're using says it's "iodized"? Iodine is a micronutrient, which means we need it in small quantities to be healthy. Because iodine is relatively rare in many people's normal diets, it's added to table salt. Then when people salt their food, such as tasty turkey, stuffing and mashed potatoes, they're also getting iodine. In this science activity you'll use some kitchen-friendly chemistry to investigate which types of salt have iodine and which don't.