5. which of the following accurately reflects the beliefs on earth's early history? a. scientists believe the early atmosphere lacked the oxygen necessary to support modern human life. b. scientists believe that dna may have existed before rna. c. scientists believe that microspheres nearly prevented the development of early life.

Which process is involved in growing crops? irrigation transportation recreation condensation

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?