How many streams are there? loop lake project

In the continental United States, 357,000 miles of streams provide water for public drinking water systems. Of that total, 58 percent (more than 207,000 miles) are headwater streams.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.