Which statement describes how El Niño contributes to climate trends on Earth? A shift in trade winds in the Pacific causes a large mass of cold water to replace warm water, bringing in a cold air mass and cold weather.

The moon and Earth line up at a 90° angle, causing large tides and warmer weather.

Water moves from the equator toward Great Britain and Europe, causing warmer temperatures.

A shift in trade winds in the Pacific causes a large mass of warm water to replace cold water, bringing in a warm air mass and warm weather.

A shift in trade winds in the Pacific causes a large mass of cold water to replace warm water, bringing in a cold air mass and cold weather.

Explanation:

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it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.