Science Crossword

anything that occurs naturally in the environment and is used by people
the contamination of Earth's land, water, or air
specific pollution source that can be identified
is the study of natural processes in the environment and how humans can affect them
is either always available or is naturally replaced in a relatively short time
widely spread and cannot be tied to a specific orgin
is the practice of managing the use of resources wisely so the resources last longer
of a resource means using it in ways that maintain the resource at a certain quality for a certain period of time
resources that are not replaced in a useful time frame
_____________ was slow until about A.D 1650
Pollution can be created by wates, chemicals, noise, heat, and__________
Environmental issues fall into three categories: population growth, pollution, and ___________
Natural resources include organisms, water, sunlight,minerals, and _____
Not all __________ are equally available in all parts of the world
Humans depend on Earth's natural resources for survival and for ___________