If humans cut down a few sections in the middle of the forest to build new homes, which of the following is a likely effect on the ecosystem that could be irreversible? a. there will be fewer deer. b. the wolves could die out. c. the trees might become more abundant. d. there will be fewer grasslands. answer !

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

What is the mass of 4 molecules of co2