the disks of spiral galaxies appear blue because:
spiral galaxies are still undergoing star formation
Hope this helps:)
Answer:
Ferehnheit scale, the Celsius scale and Kelvin scale
Explanation:
There are three main scales commonly used in the world today to measure temperature: the Fahrenheit (°F) scale, the Celsius (°C) scale, and the Kelvin (K) scale. Each of these scales uses a different set of divisions based on different reference points.
<span>The GDP calculation also accounts for spending on exports and imports. Thus, a country's GDP is a measure of consumer spending (C) plus business investment (I) and government spending (G) as well as its net exports, which is exports minus imports (X-M).</span>Apr 24, 2017<span>
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