Which of these is NOT a variable gas in Earth’s atmosphere?
A. carbon dioxide
B. ozone
C. methane
D. water vapor
E. oxygen
E
Environmental & Atmospheric Sciences
You might also like to view...
The seasons are primarily due to
A. the distance of Earth from the Sun. B. the tilt of Earth's axis. C. variations in greenhouse gas levels. D. the wavelength of solar radiation.
Environmental & Atmospheric Sciences
According to the rock cycle, a sedimentary rock can be formed from a(n)____
a. igneous rock only b. sedimentary rock only c. metamorphic rock only d. igneous or metamorphic rock e. igneous, sedimentary, or metamorphic rock
Environmental & Atmospheric Sciences
Which of the following minerals is a silicate (a mineral containing a silicon-bearing ion)?
A) hematite B) feldspar C) calcite D) halite
Environmental & Atmospheric Sciences
What ethnic group in China practices Islam and has faced opposition from the government?
A) Naxi B) Uyghur C) Hui D) Miao E) Zhuang
Environmental & Atmospheric Sciences