Cuestionario: GEOPO S1 — 9 preguntas

1. What is the fundamental law of energy that explains how humans rely on external sources?

A. Energy can be stored indefinitely without transformation

B. Energy consumption decreases over time due to efficiency

C. Energy is created anew through technological method

D. Energy is neither created nor destroyed, only transformed

Answer: (D)

Explicación

The conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. Humans require external sources of energy because biological metabolic processes alone do not suffice, necessitating fossil fuels, renewables, etc. This fundamental law underscores the importance of energy transformations in all systems.

2. What percentage of current global energy consumption was accounted for by fossil fuels in 2023?

A. 50%

B. 77%

C. 89%

D. 63%

Answer: (B)

Explicación

Fossil fuels made up about 77% of global energy consumption in 2023, making them the dominant energy source worldwide, which significantly impacts CO₂ emissions.

3. Which environmental challenge is highlighted as currently being exacerbated by human activity, leading to habitat destruction, pollution, and species extinction?

A. Progression towards ecosystem restoration worldwide

B. Complete stabilization of biodiversity after conservation efforts

C. Expansion of pristine wilderness areas

D. Continuing loss of biodiversity and ecosystem degradation

Answer: (D)

Explicación

The course summary details how human activities such as land use change, exploitation, pollution, and invasive species have worsened biodiversity loss. Habitat destruction, pollution (like plastic and eutrophication), and invasive species threaten species' survival, pushing ecosystems toward collapse and reducing Earth's resilience.

4. Which of the following is NOT one of the key structures and components listed in the revision sheet?

A. Fossil Fuels

B. Energy Converters

C. Quantum Mechanics

D. Planetary Boundaries Framework

Answer: (C)

Explicación

Quantum Mechanics is not mentioned in the revision sheet; the listed key components include fossil fuels, energy converters, and the planetary boundaries framework.

5. How does fossil fuel dependency impact climate change according to the course summary?

A. Fossil fuel use has minimal effect on atmospheric CO2 levels

B. Fossil fuel dependency lowers energy costs and thus reduces emissions

C. Fossil fuels absorb CO2, helping to reduce climate change

D. Fossil fuels cause CO2 emissions, which increase greenhouse gases and global warming

Answer: (D)

Explicación

Fossil fuels release significant amounts of CO2 when burned, contributing to higher concentrations of greenhouse gases in the atmosphere. This enhances the greenhouse effect, leading to global warming and climate change. The summary emphasizes that the dependence on fossil fuels is directly linked to increased CO2 emissions that intensify climate-related impacts.

6. Why does crossing planetary boundaries pose a risk to Earth's environmental stability?

A. It causes mass extinction of all species immediately

B. It can trigger cascading effects impacting multiple environmental systems

C. It only affects local environments without global consequences

D. It reduces the Earth's magnetic field

Answer: (B)

Explicación

Crossing planetary boundaries can trigger cascading effects that impact interconnected systems like climate and biodiversity, risking irreversible change.

7. According to the revision sheet, what role do ecosystems currently play in the carbon cycle?

A. They act solely as sources of CO₂

B. They act solely as sinks of CO₂

C. They act as both sources and sinks, but many are transforming from sinks into sources due to degradation

D. They have no significant role in the carbon cycle

Answer: (C)

Explicación

Ecosystems currently serve as carbon sinks, but degradation can turn them into sources, releasing stored carbon into the atmosphere.

8. Which of the following best describes the relationship between global energy demand and population growth?

A. Global energy demand decreases as population grows

B. Population growth has no impact on energy demand

C. Higher population growth correlates with increased energy demand, leading to more emissions

D. Energy demand is only affected by technological efficiency, not population

Answer: (C)

Explicación

As population increases, more energy is needed for various human activities, which raises energy demand and CO₂ emissions.

9. Who is most likely the author or associated figure cited in the revision sheet and for what?

A. Intergovernmental Panel on Climate Change (IPCC) for climate data in 2023

B. Albert Einstein for energy conservation principles

C. Charles Darwin for biodiversity information

D. Isaac Newton for laws of motion

Answer: (A)

Explicación

The IPCC is known for compiling climate data and assessments relevant to discussions on energy use, emissions, and global warming, fitting the context of the revision sheet.