Which is most likely an effect of long-term environmental changes?

death
migration
loss of habitat
speciation

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers

Global Warming

Is causing the most deaths of habitat loss ever; excluding the ancient ice age near the creation of man.

it will increase due to the time span

answer; the above answer to the above statement is (true)