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Do plastic vinyl windows shrink exposing the glass?

Plastic vinyl windows can shrink over time due to temperature changes and exposure to sunlight, which can create gaps that may expose the glass. This is more common in lower-quality vinyl windows or in windows that were not properly installed. Regular maintenance and inspections can help prevent this issue.


What is directional ceiling tile vs non-directional?

Directional ceiling tiles are designed with patterns or textures that have a specific orientation, meaning they need to be installed in a particular direction to achieve the intended aesthetic effect. Non-directional ceiling tiles, on the other hand, have uniform patterns or textures that can be installed in any orientation without affecting their appearance. This flexibility makes non-directional tiles easier to install and more forgiving in terms of alignment.


Can your eyes be exposed to uv rays inside of a building through glass?

Yes, UV rays can still penetrate through glass windows. While most glass windows block a significant amount of UVB rays, they may not fully block UVA rays, which can contribute to skin aging and skin cancer. It is still important to protect your eyes and skin from UV exposure indoors.


Define directional vs non directional hypothesis?

A directional hypothesis predicts the direction of a relationship or difference between variables, stating which variable will have a greater or lesser effect. A non-directional hypothesis simply predicts that a relationship or difference exists between variables without specifying the direction.


What are the three patterns of of natural selection?

The three patterns of natural selection are directional selection, stabilizing selection, and disruptive selection. Directional selection favors individuals at one extreme of a trait distribution, stabilizing selection favors the intermediate phenotype, and disruptive selection favors individuals at both extremes of a trait distribution.

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