[Answer] 8. The Environmental Protection Agency (EPA) defines a Class A carcinogen material as one that causes cancer in humans. Which of these is NOT a Class A carcinogen?

Step 1 : Introduction to the question "8. The Environmental Protection Agency (EPA) defines a Class A carcinogen material as one that causes cancer in humans. Which of these is NOT a Class A carcinogen?"

...1. Secondhand cigarette smoke 2. All of these are Class A carcinogens 3. Asbestos 4. Arsenic compounds On January 7, 1993, the EPA announced its findings regarding the effects of secondhand smoke on respiratory health. The report stated that 3,000 Americans die from lung cancer every year due to secondhand smoke. It goes on to say that the respiratory health of young children is jeopardized by secondhand smoke. Asbestos, arsenic compounds, benzene and vinyl chloride are only a few on the list of Class A carcinogens.

[Answer] 9. The Environmental Protection Agency (EPA) defines a Class A carcinogen material as one that causes cancer in humans. Which of these is NOT a Class A carcinogen?

Step 1 : Introduction to the question "9. The Environmental Protection Agency (EPA) defines a Class A carcinogen material as one that causes cancer in humans. Which of these is NOT a Class A carcinogen?"

...1. Arsenic compounds 2. Secondhand cigarette smoke 3. All of these are Class A carcinogens 4. Asbestos On January 7, 1993, the EPA announced its findings regarding the effects of secondhand smoke on respiratory health. The report stated that 3,000 Americans die from lung cancer every year due to secondhand smoke. It goes on to say that the respiratory health of young children is jeopardized by secondhand smoke. Asbestos, arsenic compounds, benzene and vinyl chloride are only a few on the list of Class A carcinogens.

[Ans] What material is used to make vests bulletproof?

Step 1 : Introduction to the question "What material is used to make vests bulletproof?"

Kevlar is a well-known component of personal armor such ballistic vests. The bulletproof vests used by United States military forces, police officers, and SWAT use Kevlar as the key component in their construction. Kevlar is a heat-resistant and strong synthetic fiber, developed by Stephanie Kwolek at DuPont in 1965. It is strong enough to stop bullets and knives, and often described as being "five times stronger than steel on an equal weight basis." It has many other uses too, from making boats and bowstrings to reinforcing tires and brake pads.

[Answer] What material is used to make vests bulletproof?

Step 1 : Introduction to the question "What material is used to make vests bulletproof?"

...Kevlar is a well-known component of personal armor such ballistic vests. The bulletproof vests used by United States military forces, police officers, and SWAT use Kevlar as the key component in their construction. Kevlar is a heat-resistant and strong synthetic fiber, developed by Stephanie Kwolek at DuPont in 1965. It is strong enough to stop bullets and knives, and often described as being "five times stronger than steel on an equal weight basis." It has many other uses too, from making boats and bowstrings to reinforcing tires and brake pads.

[Answer] What material is Superman's worst nightmare?

Step 1 : Introduction to the question "What material is Superman's worst nightmare?"

... Krypton; Cripton; Cryptin; Criptonite; Kryptonite; Kryptonite, shards from Superman's destroyed planet, render him powerless.

[Ans] The buildings that make up the Taos Pueblo are made of what natural material?

Step 1 : Introduction to the question "The buildings that make up the Taos Pueblo are made of what natural material?"

Beats Electronics LLC (also known as Beats by Dre) is a division of Apple Inc. that produces audio products. The company was founded by music producer and rapper Dr. Dre and Interscope Records co-founder Jimmy Iovine. In 2011, the Beats' market share was 64% in the U.S. for headphones priced higher than $100. On August 1, 2014, Apple Inc. acquired Beats for $3 billion in a cash and stock deal, the largest acquisition in Apple's history. The deal made Dr. Dre the "richest man in hip hop", surpassing P. Diddy.

[Answer] Which field studies human history and prehistory through analysis of material culture?

Step 1 : Introduction to the question "Which field studies human history and prehistory through analysis of material culture?"

...Archaeology's purpose is to study how people lived in the past. It looks at artifacts, architecture, historic sites, cultural remains and monuments to learn how people interacted with the world around them. An archaeologist spends time in field investigations, analyzing artifacts and excavating historic sites. They manage the logistics at these project sites, study the findings and write reports on their conclusions. The ultimate goal is to publish their research results in academic journals, then teach what they've learned to others. Source: EnvironmentalScience.org