¿What are the units that make up the 3 quantities (mass, volume of a substance and density)?

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

What is the correct term for living the most sustainable life you can within your current circumstances?