Yes, clean refers to the state of being free from dirt, marks, or unwanted substances. It can also refer to being morally upright or free from impurities. Keeping things clean is important for maintaining hygiene and a healthy environment. **

Responsive web design offers several advantages, including improved user experience across different devices, such as desktops, tablets, and smartphones. It also helps with search engine optimization (SEO) by providing a single website that can be easily crawled and indexed by search engines. Additionally, responsive design simplifies website management and maintenance, as there is only one version of the site to update and maintain. Lastly, it can lead to increased conversion rates and lower bounce rates, as users are more likely to engage with a website that is easy to navigate and visually appealing on any device. **

To clean with Mr. Clean, you can dilute the Mr. Clean Multi-Surface Cleaner in water according to the instructions on the bottle. Use a sponge or cloth to apply the solution to the surface you want to clean. Scrub the surface gently and then rinse with water. For tough stains, you can apply the Mr. Clean Magic Eraser directly to the stain and scrub until it disappears. **

The cleanliness of the apartment depends on the specific circumstances. If the apartment has been recently cleaned and maintained, it could be considered clean. However, if it has not been cleaned or has visible dirt and clutter, it would be considered not clean. It's important to assess the current state of the apartment to determine its cleanliness. **

To create a responsive design for your website, you can start by using a mobile-first approach, where you design and develop your website for mobile devices first and then scale up for larger screens. Utilize media queries in your CSS to set different styles and layouts for different screen sizes. Use flexible grid layouts and images that can adapt to different screen sizes. Test your website on various devices and screen sizes to ensure that it looks and functions well across different platforms. Additionally, consider using a responsive framework like Bootstrap or Foundation to help streamline the process. **

Rainwater is generally considered clean as it falls from the sky, but it can pick up pollutants and contaminants as it travels through the atmosphere and lands on surfaces like rooftops. It can pick up pollutants such as dust, dirt, bird droppings, and chemicals from air pollution. Therefore, it is recommended to treat or filter rainwater before consumption to ensure it is safe for drinking or other uses. **

Drugstores are generally clean and well-maintained, as they are required to adhere to strict cleanliness and sanitation standards set by health regulations. Most drugstores have regular cleaning schedules and protocols in place to ensure that the store, including the pharmacy area, is kept clean and free from contamination. However, cleanliness can vary from one drugstore to another, so it's always a good idea to observe the store's cleanliness and hygiene practices before making a purchase. **

To keep glasses clean with permanently clean lenses, it is important to regularly clean them with a microfiber cloth to remove any dust or debris. Additionally, using a gentle lens cleaner specifically designed for glasses can help maintain the cleanliness of the lenses. Avoid touching the lenses with your fingers to prevent smudges, and store your glasses in a protective case when not in use to prevent scratches. Regular maintenance and care will help keep your glasses clean and your lenses clear. **