Answer:
Set of electromagnetic radiation.
Explanation:
The electromagnetic spectrum is the energetic distribution of the set of electromagnetic radiation. It consists of <u>electromagnetic waves</u>, which are composed by an electric field and a magnetic field. Every object emits and absorbs these kinds of radiations. This spectrum encompasses from Gamma rays, which are highly energetic electromagnetic waves with high frequency and short wavelength, to Radio waves, which are low energetic electromagnetic waves with low frequency and long wavelength. The visible light, like the sunlight, is only a tiny portion of the electromagnetic spectrum, the rest of the electromagnetic waves are invisible to the human eye, like infrared light, UV light, X-rays, and microwaves, but they can be perceived and be measured with proper filters.
Sounds like the answer is D because they usually purchase those cars to save gas or fuel also known as a source of energy.
Tibet, the Roof of the World, is the highest plateau in the world. However, most of its land is arid or a semi-desert. The average annual precipitation is about 381 mm (about 15 inches) and is significantly less in some areas. Tibet experiences bitterly cold weather and is lashed by harsh winds throughout the year. The average annual temperature is around 1.1 degrees Celsius (34 degrees Fahrenheit).
The mountains are treeless, with only grasses and shrubs growing. Tibetan people live in the valleys of the Indus and the Brahmaputra, where they are able to grow some crops. The river valleys also support a few species of trees including oak, cypress, polar and maple. In addition, the people grow apple, peach, pear and apricot trees.
<span> living components of ecosystems
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