Why are a variety of instruments needed to measure change in the climate system?
a. A different type of instrument is needed for each different climate.
b. The climate system involves a number of different factors that are measured differently.
Climate is determined over a number of years, rather than a short period of time.
d. Different areas have developed different instruments to measure climate change.

answer; hypnagogic sensations)

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.