Environmental Challenges in the 21st Century

What is the biggest global concern according to more than 50 percent of people across the globe?

• Deforestation

• Ocean acidification

• Pollution

• Abrupt climate change

Which environmental issue is responsible for nearly one million deaths each year?

• Ocean acidification

• Deforestation

• Pollution

• Lack of access to safe water and sanitation

What is the main cause of acid rain?

• Natural volcanoes

• Cars and electricity generation

• Deforestation

• Pollution

What is the purpose of the ozone layer?

• To protect the planet from UV rays

• To regulate temperature and rainfall

• To absorb CO2 from the atmosphere

• To prevent deforestation

What is the primary cause of deforestation?

• Overpopulation

• Global warming

• Lack of access to safe water and sanitation

• residential, industrial, or commercial purposes

What is the significance of biodiversity?

• It helps regulate temperature and rainfall

• It contributes to improved health and prevents the spread of infectious diseases

• It plays a vital role in the sustainability of life on Earth

• It reduces the rate of atmospheric warming and climate change

What is the direct chemical effect of CO2 absorption by the oceans?

• Ocean acidification

• Air pollution

• Soil erosion

• Loss of biodiversity

What is the global crisis caused by excessive waste disposal?

• Overpopulation

• Deforestation

• Loss of biodiversity

• Pollution

What is the main consequence of overpopulation?

• Global warming

• Acid rain

• Pollution

• Increased demand for resources

What is the primary cause of pollution?

• Air pollution

• Water pollution

• Soil pollution

• Human activities