If you can list all of the following options we will be able to help you.
Answer:
Do you have a friend that can affect your mood? Whenever she's up, you're up. When she's down, you're down. A proportional relationship between quantities is a lot like that. For example, imagine a beehive that has a lot of bees in it. Each of those bees has six legs. If I take away half the bees, there will only be half as many legs left in the hive as well. There is a proportional relationship between the number of bees and the number of bee legs in that hive.
A proportional relationship exists between two values x and y when they can be expressed in the general form y = kx, where k is the constant of proportionality.
Our beehive example could be represented by y = 6x, where x is the number of bees, y is the number of legs, and k is 6 (since each bee has 6 legs). If I double x, then y will also double, and if I divide y by x, then y/x should always be 6.
Another way to say that is if two values are proportional, then dividing them by each other will always produce the same ratio. This ratio will be the constant k, which can be expressed as a fraction or a decimal.
Explanation:
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High pressure and ocean currents causes dry summer season in San Francisco and abundant amount rainfall in Washington, DC.
High pressure cells combine with the different ocean currents off the coasts causes a summer dry season in San Francisco and abundant rainfall in Washington, DC because these pressure cell along with ocean currents carried out moist winds which turn into clouds lead to rainfall.
When moist winds blow inland, the high terrain of the Cascade Range forces the moist air to rise into the atmosphere, forming thick clouds and steady rainfall occurs in Washington, DC while on the other hand, San Francisco experience dry summer season and wet winter season due to presence near the water bodies so we can conclude that high pressure and ocean currents causes dry summer season in San Francisco and abundant amount rainfall in Washington, DC.
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The answer is B. Tsunamis. The underwater and above water volcanoes around the Ring of Fire erupt due to the high amount of tectonic activity, which causes the tsunamis.