When does greenhouse effect happen?

• A. When the earth surface absorb heat from the atmosphere.

• B. When the earth surface absorb heat from the earth’s interior

• C. When the upper atmosphere absorb heat from the outer space.

• D. When the lower atmosphere absorb heat from the earth’s surface.

Which activity does NOT contribute to global warming?

• A. reforestation

• B. illegal fishing

• C. mining activities

• D. incineration of garbage

What will happen if there is too much carbon dioxide in the atmosphere?

• A. Temperature increases

• B. Temperature decreases

• C. Water vapor condenses

• D. Greenhouse effect occurs

What causes La Niña?

• A. Warming of water in the Atlantic Ocean.

• B. Cooling of water in the Atlantic coast of the US.

• C. Warming of water in the Pacific Ocean off the coast of South America.

• D. Cooling of water in the tropical Pacific Ocean between the Tropic of Cancer and the Tropic of Capricorn

During an El Niño year, what happens to ocean temperature in the central and eastern tropical Pacific Ocean? D.It remains in the same temperature.

• A. It is cooler than the average.

• B. It is warmer than the average.

• C. It is varied throughout the ocean.

• D.It remains in the same temperature.

Which of the following factors is the contributor to current enhanced (humaninduced) global warming?

• A. solar radiation

• B. littering everywhere

• C. hole in the ozone layer

• D. carbon dioxide emissions

Which of the following human activities DOES NOT contribute to enhanced climate change?

• A. Always using cars when going even to short distance places.

• B. Joining in tree planting activities whenever possible.

• C. Rallying against the use of renewable energy.

• D. Chopping down rainforests.

12. Which statement supports reduction of carbon footprint?

• A. Drive a hybrid car.

• B. Hang blankets to dry.

• C. Eat a plant-based diet.

• D. Turn off your lights if not needed.

The cause of the vast majority of climate change can be attributed to _________.

• volcanoes.

• cattle farming.

• the burning of fossil fuels.

• crop production

Global climate change has had numerous effects on the Earth. Which of the following has been a result of global climate change?

• increase in insect pest populations

• rise in infectious tropical diseases

• increase in coastal flooding

• all of these answers