What is the distribution of lichens?
A. Artic
B. Global
C. Sporadic
D. Tropical

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e