Exam 2

What is the primary reason Earth has seasons?

• The Earth's rotation on its axis

• The Earth's orbit around the Sun in an elliptical pattern

• The tilt of the Earth's axis relative to its orbit around the Sun

• The distance between the Earth and the Sun

Which zone is characterized by having the most extreme seasonal changes?

• Biome

• Polar zone

• Tropic zone

• Temperate zone

What is the significance of thermohaline circulation in the Earth's climate system?

• It decreases the salinity of the ocean

• It is the primary driver of weather patterns

• It contributes to the oxygenation of the deep ocean

• It distributes heat across the planet

Which of the following best describes a biological community?

• Different species living in the same area and interacting with each other

• A group of the same species living in an area

• A single species and its non-living environment

• A collection of ecosystems with similar climates

Which type of interspecies interaction is essential for the evolution of defensive mechanisms in prey species?

• Predation

• Parasitism

• Commensalism

• Mutualism

How does deforestation affect the carbon cycle?

• It increases the amount of carbon dioxide in the atmosphere

• It decreases the amount of carbon dioxide in the atmosphere

• It has no significant effect on the carbon cycle

• It increases the amount of oxygen in the atmosphere

What role do phytoplankton play in the oceanic food web?

• They are primary consumers

• They decompose organic material

• They are primary producers

• They are secondary consumers

Which process is primarily responsible for the formation of soil?

• Evaporation

• Weathering of rocks and organic matter decomposition

• Photosynthesis

• Condensation