The correct answer for the first question is A) they produce carbonic acid form the atmospheric carbon. Excess carbon dioxide in the oceans reacts with water to form carbonic acid, which lowers the pH of the water, making it more acidic. This can harm marine life and disrupt the delicate balance of ocean ecosystems.
The correct answer for the second question is B) burning fossil fuels. Burning fossil fuels, such as coal, oil, and natural gas, releases large amounts of carbon dioxide into the atmosphere. This is the main source of increased levels of atmospheric carbon dioxide, contributing to global warming and climate change.
The correct answer for the third question is A) heavy carbon-13. Fossil fuels contain a higher ratio of heavy carbon-13 isotopes compared to other sources of carbon dioxide, such as volcanic activity or natural processes. By measuring the isotopic ratio of carbon dioxide in the atmosphere, scientists can identify the contribution of fossil fuel combustion to the overall carbon dioxide levels.
Excess carbon dioxide is harmful to the oceans because
Responses
A they product carbonic acid form the atmospheric carbonthey product carbonic acid form the atmospheric carbon
B it removes most of the dissolved oxygenit removes most of the dissolved oxygen
C it decreases the rate of evaporation
Which of these has the greatest impact on increased levels of atmospheric carbon dioxide?
Responses
A volcanoesvolcanoes
B burning fossil fuelsburning fossil fuels
C agriculture
What is used as a "fingerprint" to distinguish the carbon dioxide produced from fossil fuels?
Responses
A heavy carbon-13heavy carbon-13
B ozoneozone
C carbon monoxide
1 answer