Ques: Q: What strong and lightweight manmade material is derived from hydrocarbons and used in ropes, tents and parachutes? Choices: - styrofoam - cellophane - aluminum - nylon A:
Ans: nylon

Ques: Q: What describes the way light reflects off of the surface of the mineral? Choices: - intensity - density - hardness - luster A:
Ans: luster

Ques: Q: Organisms tend to be larger in size at higher what levels? Choices: - proteolytic - benthic - Secondary Layer - trophic A:
Ans: trophic

Ques: Q: What layer of skin is located right beneath the epidermis? Choices: - cusps - scars - humus - dermis A:
Ans:
dermis