The lowermost stratum of Earth's atmosphere positioned beneath the stratosphere is called?
Show answer Hide answer
Answer: B. Troposphere
Explanation
The troposphere occupies the lowest region of the atmosphere resting directly on Earth surface. Atmospheric layering places the troposphere underneath the stratosphere where commercial planes fly. Most weather events occur within this lowermost stratum because it contains most atmospheric mass. Earth atmosphere is divided into distinct thermal layers including troposphere and stratosphere. The boundary separating troposphere from stratosphere is known as the tropopause layer. Temperature decreases with increasing altitude throughout the entire extent of the troposphere.
Life on Earth depends entirely on the lowermost atmospheric layer for breathable air and weather. Climatologists study tropospheric dynamics to understand global warming and atmospheric circulation. Pollution and greenhouse gases are primarily trapped and mixed within this lowest atmospheric stratum. The ionosphere sits high above in the upper atmosphere far beyond normal weather layers. The stratosphere rests directly above the troposphere rather than underneath it. The mesosphere is located much higher up above the stratosphere near space boundaries.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
Related questions
Q1. The lowest naturally occurring temperature ever documented on Earth is?
Show answer Hide answer
Answer: A. –89.2 °C
Meteorological records confirm that the lowest naturally occurring surface temperature on Earth reached minus 89.2 degrees Celsius. This extreme temperature extreme was reliably measured at the high-altitude Vostok Stati...
Q2. Volcanic eruptions expel molten magma, ash, and gases collectively known as:
Show answer Hide answer
Answer: A. Solid, liquid, gaseous
Volcanic eruptions forcefully expel a complex mixture of solid rock fragments, liquid lava, and gases. Solid tephra, molten lava, and volatile gases represent all three states of physical matter. This diverse mixture eme...
Q3. The matter comprising our sun exists in a ________ state of matter?
Show answer Hide answer
Answer: D. Plasma
Extreme core temperatures inside the Sun strip electrons entirely from their parent atomic nuclei. This intense ionization creates a superheated fluid state composed of free electrons and positive ions. Plasma represents...
Q4. What is the average Earth-Sun separation distance expressed in astronomical units____________?
Show answer Hide answer
Answer: C. 1 AU
One astronomical unit is formally defined to equal the average physical distance separating the Earth and Sun. This standard unit simplifies calculations regarding orbital distances within our solar system without using...
Q5. Anemometers serve as meteorological instruments for quantifying wind velocity?
Show answer Hide answer
Answer: A. Anemometer
Anemometers function as standard meteorological instruments designed to quantify wind velocity. Cup anemometers spin in the wind, allowing observers to calculate wind speed accurately. Monitoring wind metrics is essentia...
Q6. The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is ________ ?
Show answer Hide answer
Answer: A. Dermatology
Dermatology is the specialized medical branch focused exclusively on diagnosing and treating skin conditions. Dermatologists study skin histology, physiological functions, and pathological disorders affecting human healt...