Select the event that marks the beginning of the instrumental period of climate history.

Incomplete question. The options read;

a) routine and widespread usage of thermometers starting in 1860

b) invention of the mercury thermometer by Daniel Fahrenheit in 1714

c) first temperature recording by an orbiting weather satellite in 1979

d) use of ocean-going vessels to measure marine air temperatures in 2000

b) invention of the mercury thermometer by Daniel Fahrenheit in 1714

Explanation:

The definition of climate would lack proper understanding if not for the invention by Daniel Fahrenheit in 1714. Historians agree that Daniel's mercury thermometer allowed many other researchers to understand how much temperature existed in a particular environment or climate.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.