Across
- 4. Set of atmospheric conditions that characterize a region, by the influence they exert on life on Earth. ( p. 87, line 3).
- 5. First hydrocarbon of the series of alkanes (CH4) found in natural gas, coal etc.; us in petrochemicals and as a fuel. (p. 91, line 3).
- 7. Hottest season of the year, situated between spring and autumn [In the southern hemisphere, it begins when the Sun reaches the December solstice (21) and ends when it reaches the March equinox (20); in the northern hemisphere, it begins on the June solstice (21) and ends on the September equinox (21).] (p. 102, line 26).
- 8. Prolonged drought; lack of water. (p. 95, line 23).
- 10. Quality or character of what is evident, of what leaves no room for doubt. (p. 87, line 3).
- 12. Event, event that causes suffering and great harm (physical, moral, material, emotional); disgrace.(p. 102, line 6).
- 14. Stormy and sudden wind that run with great fury in all directions, hurricane at sea. (p. 102, line 2)
- 16. Fuel produced from organic matter, esp. of vegetables or garbage. (p. 91, line 4).
- 18. Coldest season of the year, which is between autumn and spring [In the southern hemisphere, it extends from the June solstice (21) to the September equinox (23); in the northern hemisphere, from the December solstice (22) to the March equinox (21).]. (p. 102, line 25).
- 20. Layer of gases that surrounds a planet and is held back by its gravitational pull. (p. 87, line 10).
Down
- 1. Ability of a body, substance or physical system to perform work [symb.: E ]. (p. 91, line 4).
- 2. Biodegradable, non-toxic and low-polluting fuel, produced from vegetable oils extracted from various raw materials, which can be used. in diesel engines. (p. 91, line 9).
- 3. Degree of heat or cold of the environment or a body. ( p. 87, line 5).
- 6. Cyclone species; devastating gale; storm, typhoon [Phenomenon common in Central America, Florida, Pacific (South and Northeast) and North Atlantic, where it is characterized by winds that reach 300 km/h.]. (p. 102, line 35).
- 9. Who or one who is versed in science, esp. natural science. (p. 95, line 10).
- 11. Conclusions reached by the members of a commission (or a person) charged with carrying out research, or studying a particular problem or project. ( p. 87, line 14).
- 13. Vast expanse of salt water that occupies most of the earth's surface; ocean. (p. 95, line 1).
- 15. Priestly vestments; chasuble. (p. 95, line 13).
- 17. M.q. ETHYL ALCOHOL. (p. 91, line 8).
- 19. Star that is part of the Milky Way and that is the center of the planetary system, in which the Earth participates. (p. 95, line 16).