Question

What would happen if there were 0 (zero) sea ice in the world, northern or southern hemisphere? Think about energy, density, ocean circulation, and currents.

a. Increased ocean circulation
b. No impact on energy balance
c. Disruption of ocean currents
d. Decreased density of water

Answer 1

If there were no sea ice in the world, it would lead to increased ocean circulation, disruption of ocean currents, and decreased density of water. The correct answer is d. Decreased density of water.

Step-by-step explanation:

If there were 0 (zero) sea ice in the world, both in the northern and southern hemisphere, it would have several impacts on energy, density, ocean circulation, and currents:

1. Increased ocean circulation: With no sea ice acting as a physical barrier, the ocean currents would be able to flow more freely, leading to increased ocean circulation.
2. Disruption of ocean currents: Sea ice plays an important role in the formation and maintenance of ocean currents. Without sea ice, the normal patterns of ocean currents would be disrupted, leading to potential changes in regional climates.
3. Decreased density of water: Sea ice forms when the surface water of the ocean freezes, which increases the density of the surrounding water. Without sea ice, the density of the water would decrease, potentially impacting the mixing and circulation of deep ocean currents.