Earth Day 2023

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Across
  1. 1. This flowering plant is a succulent perennial plant that is native through most of the length of North and South America.
  2. 6. List defining the severity and causes of each species’ threat of extinction. It is maintained by the International Union for the Conservation of Nature (IUCN). (Two Words)
  3. 9. Acronym for the environmental organization concerned with preserving natural ecosystems and habitats.
  4. 11. Known for eating ants and termites, this mammal belongs to the suborder Vermilingua, meaning “worm tongue”.
  5. 12. The natural home of an animal, plant, or other organisms.
  6. 14. The goal of these is preservation with an emphasis on causing minimal change to the landscape or environment. (Two Words)
  7. 15. The most abundant element in Earth’s atmosphere.
  8. 16. A planet orbiting a star other than our Sun; also called “extrasolar planet.”
  9. 17. Along with loss of habitat, this is the main reason for a species to become endangered. (Two Words)
  10. 20. The heaviest members of the weasel family, this marine mammal is native to the coasts of the northern and eastern North Pacific Ocean and were sought after for their waterproof coats. (Two Words)
Down
  1. 2. Thickest at the equator and thinnest at the poles, most of the entire atmosphere's mass is contained here.
  2. 3. The action of protecting something for conservation.
  3. 4. Native to the rainforests of Indonesia and Malaysia, these endangered great apes are now only found in parts or Borneo and Sumatra.
  4. 5. The long-term viability of a community; a form of intergenerational ethics in which the environmental and economic actions taken by present persons do not diminish the opportunities of future persons to enjoy similar levels of wealth, utility, or welfare.
  5. 7. Natural or made without chemicals.
  6. 8. The last known surviving Pinta Island tortoise and an important symbol for conservation efforts in the Galapagos Islands. (c. 1910-2012) (Two Words)
  7. 10. The largest river basin in the world, this area is the world’s richest and most biodiverse region in the world.
  8. 13. This baleen whale is found in all oceans except the Artic. (Two Words)
  9. 18. The science of organisms and their environment.
  10. 19. An estimated 31% of the 430 types of this tree are threatened with extinction.