After reviewing his annual costs, a scientist notes that the feed bill always spikes over the summer months. he wonders if his research mice eat more when the air conditioner is operating. luckily his lab has two separate rooms. the scientist divides his mice into two groups of 50, group a and group b, and places them in the separate rooms. both groups are kept in enclosures where they have free access to food at all times. to establish a base line, he tests the hunger level of the two groups by monitoring their food intake for 7 days. the mice in group a ate an average of 31.2 grams of food per day. the mice in group b ate an average of 32.6 grams of food per day. then, the scientist turns on the air conditioner in room a and leaves room b as is. after 7 additional days, the scientist again averages the amount of food eaten by each group. the mice in group a ate an average of 30.7 grams of food per day. the mice in group b ate an average of 31.2 grams of food per day. because the difference between the two groups was so small, and so close to the amount they ate before the experiment, the scientist concludes that the air conditioning did not impact their appetites. read the mice scenario in order to answer the following question. write a valid hypothesis for this experiment.

light-year  

the distance that light travels in a vacuum in one year, equal to about 9.46 trillion km (5.88 trillion mi). light-years are used in measuring interstellar and intergalactic distances.  

parsec  

a unit of distance used in astronomy, equal to about 3.25 light years (3.08 × 1016 meters).  

parallax  

the apparent angular displacement of a celestial body due to its being observed from the surface instead of from the center of the earth (diurnal parallax or geocentric parallax) or due to its being observed from the earth instead of from the sun (annual parallax or heliocentric parallax)  

absolute magnitude  

the magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs.  

apparent magnitude  

the magnitude of a celestial object as it is actually measured from the earth.  

redshift  

an increase in the wavelength of radiation emitted by a celestial body as a consequence of the doppler effect.  

the great thing about your imagination is that it doesn't have to make sense! if i were you i would be stuck in space, no communication with earth travelling around and around, you can only guess how long its been since your communication broke down. you land on an undiscovered planet, you do a scientific investigation examining the elements and conditions. you come across alien lifeforms.  

best of luck!

answer; clean work space and clothing using compressed air;

ash is formed by combustion

explanation: