Answer:
Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Answer:

Explanation:
Given:
Represent
- Susan's velocity with 
- Michael's velocity with 
eastwards
westwards
Required
Determine how fast is
relative to 
From the question, one train moves eastwards while the other moves westwards.
This means that travel in opposite travel and the relative speed (V) is calculated as:

Substitute values for
and 


<em>Hence, the Susan's train is moving 2m/s in relative to Michael's train</em>
Answer:
Fusion
Explanation:
Fusion.. Every second, 600 million tons of hydrogen are being converted into helium. This reaction releases a HUGE amount of heat and energy. The process of fusion in the Sun is known as the proton-proton chain.
Every eight hours often does the external electronic simulator need to be used. Thus, the correct option is A.
<h3>
What is blood gas?</h3>
The amount of oxygen and carbon dioxide in your blood are measured by blood gases. Your blood's pH is also calculated by them.
Every eight hours when the instrument is in use, each patient is checked before usage. There is a specific Electronic Simulator Quality Control equipment for each i-STAT1 analyzer.
For more information regarding blood gas, visit:
brainly.com/question/11531432
#SPJ1
A coastal<span> plain is a flat, low-lying piece of land next to the ocean. </span>Coastal plains<span> are separated from the rest of the </span>interior<span> by nearby landforms, such as mountains. In western South America, a large </span>coastal<span> plain lies between the Andes Mountains and the Pacific Ocean.</span>