In recent years, scientists have been concerned about decrease in the ozone content of earth’s upper atmosphere. What is the principle threat to humans if this decrease in ozone continues?
My answer is, Decreasing precipitation leading to crop failure and possible human starvation. Am i correct?
No, you are not correct. The principle threat to humans if the decrease in ozone continues is an increased risk of exposure to harmful ultraviolet (UV) radiation. The ozone layer plays a critical role in absorbing and blocking most of the sun's UV radiation, particularly the high-energy UV-B and UV-C rays. If the ozone layer continues to be depleted, more UV radiation can reach the Earth's surface, which can have numerous adverse effects on human health, including an increased risk of skin cancer, cataracts, weakened immune system, and other negative effects on the environment. It is important to note that the decrease in ozone depletion does not directly cause a decrease in precipitation or lead to crop failure.
No, your answer is not correct. While decreasing ozone can have some indirect effects on the environment, the main threat to humans from the decrease in ozone is an increase in harmful ultraviolet (UV) radiation reaching the Earth's surface.
To understand this, you need to know how to find information about the topic. One reliable source of information is scientific research studies and reports. You can search for scientific articles or reports on the topic of ozone depletion, such as those published by reputable organizations like the Intergovernmental Panel on Climate Change (IPCC) or the World Meteorological Organization (WMO).
These sources will explain that the ozone layer in the Earth's upper atmosphere acts as a shield, absorbing most of the Sun's harmful UV radiation. However, certain human-made chemicals called chlorofluorocarbons (CFCs) have been released into the atmosphere, which can destroy ozone molecules. This depletion of ozone results in an increased amount of UV radiation reaching the Earth's surface.
Excessive exposure to UV radiation can have serious health consequences for humans. It can lead to an increased risk of skin cancer, cataracts, weakened immune system, and damage to marine life and ecosystems. Therefore, the main threat to humans from the decrease in ozone is the increased risk of harmful effects caused by heightened UV radiation exposure.
When answering questions, it's important to rely on reliable sources of information and understanding the underlying scientific principles involved.