What determines the strength of wind

What is the empirical formula for c4h8o2

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume