Answer: D
Explanation:
The bumps show that if the weather is intense or not. So if A part hasn’t got any bumps, that means it is much warm and calm.
Most El Nino climate patterns involve the Earth's atmosphere and the surface waters of the the Pacific Ocean<span>. El Nino is a climate cycle in the Pacific Ocean with a global impact on weather patterns. The cycle begins when warm water in the western tropical Pacific Ocean shifts eastward along the equator toward the coast of South America. Normally this warm water pools near Indonesia and the Philippines. During an El Nino, the Pacific's warmest surface waters sit offshore of northwestern South America. </span>
Answer:
Let's take a look at the modern day headphones we have now. They're airpods. Wirless. It used to be connected to wires. And those earbuds used to be headphones. And those headphones used to be heavy speakers.
Explanation:
How did they evolve with growth in technology? Back in the early 1890s, headphones were single-sided, heavy speakers that people would hold on to an ear to communicate. This later evolved into something known as an 'Electrophone'. It was a system consisting of a stethoscope-shaped headphone connected to a switchboard.
We started using them in the wars to communicate with the troops on the ground and now we use them to stay focused, to disappear and to give ourselves some time away from the stressful world we live in.
