What will most likely happen if the plankton population decreases in this ocean system?

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

What is the problem in this article? what solution does the article propose?

In which state was more than 100 billion tons of coal mined in 2005?