Questions & Answers

Why Is Silica Dangerous

Breathing crystalline silica dust can cause silicosis, which in severe cases can be disabling, or even fatal. When silica dust … More

Quick Answer: Why Is Red Red

Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. For example, a red … More

Why Is Pyrex So Expensive

Are Pyrex dishes worth money? Patterned Pyrex—such as the 1956 Pink Daisy or the 1983 Colonial Mist—also tend to be … More

Why Is Pizza So Unhealthy

Like all foods, more processed types of pizza are often higher in unhealthy ingredients than those made from scratch. Frozen … More