| ECOLOGY | From the Greek meaning "house", the study of the relationships between living organisms and their physical environments (7) |
| SOILS | Their pH's are often measured |
| ECO | Prefix from the Greek "oikos," meaning "house" |
| SADAN | Word meaning "house" seen in names of state guest houses in Delhi |
| ERGONOMICS | The study of the relationship between workers and their environment, especially the equipment they use (10) |
| BIOSPHERE | The _________ is a relatively thin life-supporting stratum of Earth's surface, composed of living organisms and the abiotic factors from which they derive energy and nutrients (9) |
| SHADOWLANDS | 1993 film telling the story of the relationship between Joy Davidman and C. S. Lewis (11) |
| BIOTERRORISM | The use of living organisms and their toxic products to kill or incapacitate (3-9) |
| ECOLOGISTS | Scientists such as Rachel Carson and Charles Elton who study the interdependence between living things and their environment |
| TRIGONOMETRY | Mathematics of the relationship between angles and sides of triangles (12) |
| PHOSPHORUS | This element is an important constituent of bones and teeth. It is essential to the growth of living organisms, and it is an important component in fertilizer. |
| OHMSLAW | Description of the relationship between current, voltage and resistance (4,3) |
| ECOSYSTEM | A community of living organisms and their physical environment (9) |
| ASPECTS | From Latin for "to look", positions of the planets; or, relationships between viewers and the viewed (7) |
| MAYDECEMBER | LIKE THE RELATIONSHIPS BETWEEN THEME FOLKS |
| SPATIAL | ____ awareness, an understanding of the relationship between objects (7) |
| ECOLOGIC | Related to living organisms and their environment (8) |
| DEARJOHNLETTER | Missive notifying a partner of the end of the relationship (4,4,6) |
| BRITISHCOUNCIL | Body whose remit is "to build mutually beneficial cultural and educational relationships between the United Kingdom and other countries" |
| HOWARDSEND | 1910 E.M.Forster novel concerning the relationships arising between different families (7,3) |
