Environmental Science - Study Mode

[#806] The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere:
Correct Answer

(B) Radiosonde

Explanation

Solution: The radiosonde is a balloon-borne instrument platform with radio transmitting capabilities. Originally named a radio-meteorograph, the instrument is now referred to as a radiosonde, a name apparently derived by H. Hergesell from a combination of the words "radio" for the onboard radio transmitter and "sonde", which is messenger from old English. The radiosonde contains instruments capable of making direct in-situ measurements of air temperature, humidity and pressure with height, typically to altitudes of approximately 30 km. These observed data are transmitted immediately to the ground station by a radio transmitter located within the instrument package.

[#807] Basidiospores are considered to be a major source of
Correct Answer

(A) airborne allergens

Explanation

Solution: A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia

[#808] An example of an abiotic component
Correct Answer

(B) Soil

Explanation

Solution: Soil is often considered an abiotic factor since it is mostly made up of small particles of rock (sand and clay) mixed with decomposed plants and animals. Plants use their roots to get water and nutrients from the soil.

[#809] Pollutants that are introduced into the environment by human activity are called as
Correct Answer

(C) anthropogenic pollutants

Explanation

Solution: Anthropogenic pollution is not new—humans have contributed to the environmental burden since they learned to control fire and smelt metals. However, the nature and distribution of contaminants in the environment has changed in recent history as new compounds have been created

[#810] When clouds are viewed near the horizon, the individual cloud elements usually:
Correct Answer

(A) Appear closer together than is actually the case

Explanation

Solution: When clouds are viewed near the horizon, the individual cloud elements usually appear closer together than is actually the case.