Final answer:
Ozone depletion results in increased UV radiation reaching Earth, causing reduced crop yields, reduced marine life, and increased ground level ozone, therefore the correct answer is '4) All of the above'.
Step-by-step explanation:
What effects can ozone depletion have on the environment? Ozone depletion can have several adverse effects on the environment, including 1) Reduced crop yields, 2) Reduced marine life, and 3) Increased ground level ozone. All of these options are correct, so the answer is 4) All of the above.
The stratospheric ozone layer, often referred to as the 'good ozone', plays a crucial role in protecting life on Earth by absorbing harmful UV radiation. When this layer is depleted due to pollutants such as chlorine and bromine gases, more UV radiation can reach the Earth's surface.
This increased UV exposure can lead to higher instances of skin cancer and eye cataracts in humans, as well as negatively affecting the nitrogen cycle and marine ecosystems by killing plankton, which are essential to ocean food webs. Furthermore, ozone depletion can exacerbate the formation of 'bad ozone' at the ground level, which is harmful to respiratory health.