Ocean, Atmosphere & Climate

What is the definition of ocean currents?

• Ocean currents are small, localized movements of water caused by tides.

• Ocean currents are large-scale movements of seawater that flow through the oceans, driven by factors such as wind, temperature differences, and the Earth's rotation.

• Ocean currents are the vertical movements of water that occur in lakes.

• Ocean currents are the seasonal changes in water temperature in coastal areas.

How do ocean currents affect coastal climates?

• They have no effect on coastal climates.

• They can moderate coastal climates by bringing warm or cool water, which influences air temperatures and weather patterns.

• They only affect ocean life, not the climate.

• They create storms that change the climate.

What is the difference between weather and climate?

• Weather refers to the long-term atmospheric conditions in a region, while climate is the short-term conditions in a specific place.

• Weather is the average atmospheric conditions over a long period, while climate refers to short-term conditions.

• Weather refers to the short-term atmospheric conditions in a specific place at a specific time, while climate is the average weather conditions in a region over a long period of time.

• Weather and climate are essentially the same and can be used interchangeably.

What is a key factor that affects ocean currents?

• Temperature variations

• Wind

• Salinity levels

• Ocean depth

What is the impact of deforestation on climate?

• Deforestation leads to increased carbon dioxide levels in the atmosphere, contributing to climate change.

• Deforestation has no significant impact on climate.

• Deforestation helps in reducing greenhouse gas emissions.

• Deforestation increases biodiversity in the ecosystem.

What is upwelling in oceanography?

• A process where warm water sinks to the ocean floor.

• A phenomenon where deep, cold water rises to the surface, bringing nutrients that support marine life.

• The movement of water away from the shore due to wind.

• A type of ocean current that circulates warm water around the globe.

What is the greenhouse effect?

• The process by which the Earth's surface cools due to the reflection of sunlight.

• The warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

• The phenomenon where plants absorb carbon dioxide and release oxygen.

• The increase in Earth's temperature due to deforestation and urbanization.

What is the water cycle?

• The process of water moving through the atmosphere and back to the surface of the Earth, including evaporation, condensation, and precipitation.

• A method of purifying water through filtration and chemical treatment.

• The cycle of water being stored in underground reservoirs and released through wells.

• The process of water being absorbed by plants and released into the atmosphere through transpiration.

What is energy in the context of physical science?

• Energy is the ability to make things move or change.

• Energy is a measure of the temperature of an object.

• Energy is the total amount of matter in a system.

• Energy is the force applied to an object.

What is the significance of the Gulf Stream?

• It is a cold ocean current that originates in the Arctic and influences the climate of Canada.

• It is a warm ocean current that originates in the Gulf of Mexico and influences the climate of the eastern United States and Western Europe.

• It is a tidal wave that affects the coastal regions of the Pacific Ocean.

• It is a freshwater river that flows into the Atlantic Ocean and impacts marine biodiversity.