Nitrogen is a nutrient needed by plants for growth. Nitrogen is naturally cycled into the soil where it is rapidly absorbed by plants. What would a farmer MOST likely do to replenish nitrogen that was depleted from the soil

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2