Which scenario will most likely lead to a decrease in population size? high birth rate and low death rate

high birth rate and low immigration

low birth rate and low immigration

low death rate and high immigration

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .