How can installing screens on windows and doors help reduce mosquito bites?

Installing screens on windows and doors creates a physical barrier that prevents mosquitoes from entering indoor spaces. By effectively blocking these pests from gaining access to homes and other indoor areas, screens significantly reduce the likelihood of mosquito bites. This is particularly important since mosquitoes are often attracted to humans and can transmit diseases.

The other choices either do not accurately describe the function of screens or do not address the issue of mosquito prevention directly. For instance, attracting more mosquitoes contradicts the protective purpose of screens. Similarly, using ultrasonic waves relates to a different approach of mosquito deterrence, which is not the primary benefit of installing screens. Additionally, eliminating standing water sources addresses mosquito breeding grounds rather than providing a barrier to their entry.