GEOLOGY

Detailed explanation-1: -Increases in carbon dioxide and methane in the atmosphere help to further warm the earth, and these gases are thought to have contributed to historical rapid warming events.

Detailed explanation-2: -These currents are on the ocean’s surface and in its depths, flowing both locally and globally. Winds, water density, and tides all drive ocean currents.

Detailed explanation-3: -The main source of ocean heat is sunlight. Additionally, clouds, water vapor, and greenhouse gases emit heat that they have absorbed, and some of that heat energy enters the ocean. Waves, tides, and currents constantly mix the ocean, moving heat from warmer to cooler latitudes and to deeper levels.

Detailed explanation-4: -Energy is moved by ocean currents from areas of strong heating to cooler areas: warm currents transport warmer water from lower latitudes (nearer the equator) to higher latitudes (nearer the poles) cold currents take colder water from higher latitudes (nearer the poles) to lower latitudes (nearer the equator).