B. distance and mass because as distance increases, the gravitational pull decreases and when it decreases, the gravitational pull increase. Also the mass increases, so does the attraction and opposite if it decreases.
Infrared: (of electromagnetic radiation) having a wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves.Infrared radiation has a wavelength from about 800 nm to 1 mm, and is emitted particularly by heated objects.
Ultraviolet: (of electromagnetic radiation) having a wavelength shorter than that <span>of the violet end of the visible spectrum but longer than that of X-rays.</span>
They surround and engulf foreign objects and organisms- process called phagocytosis
That your body is fighting the infection
<span>The answer to 10 is A as liquids expand with an increase in temperature. 12. Not able to answer. The answer to 17 is A as a the two different metals expand and contract at different rates when heated and cooled.</span>