If a sediment is white in color, it is likely to be:
A) undergoing oxidation.
B) terrigenous in origin.
C) biological in origin.
D) a nodular sediment.
C
You might also like to view...
Suppose a weather forecast states the following: Increasing cloudiness and warm today, with the possibility of showers by this evening; turning much colder tonight; winds southwesterly, becoming gusty and shifting to northwesterly by tonight. Which of the following types of weather fronts would be responsible for this forecast?
A. cold front B. stationary front C. cold-type occluded front D. warm front
On the lee side of the mountain, is the relative humidity of the parcel increasing or decreasing as it descends from 4000 meters to sea level? Why?
Assume that a parcel of air is forced to rise up and over a 4000-meter-high mountain (as shown). The initial temperature of the parcel at sea level is 30°C, and the lifting condensation level (LCL) of the parcel is 2000 meters. The DAR is 10°C/1000 m and the SAR is 6°C/1000 m. Assume that condensation begins at 100% relative humidity and that no evaporation takes place as the parcel descends.
Oysters in Chesapeake Bay were once so abundant that they filtered and cleaned the water of the entire Bay every 3 days.
Answer the following statement true (T) or false (F)
Which of the following blocks the receptor sites for acetylcholine?
A) curare B) nicotine C) opiate D) none of these