subject
Biology, 21.04.2020 03:22 isahbellas

3. The amount of in the soil was no longer a limiting factor in crop production after chemists discovered how to produce ammonia artificially in 1910.
A carbon
B. chlorine
c. nitrogen
D. sulfur

ansver
Answers: 3

Another question on Biology

question
Biology, 21.06.2019 19:30
Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)
Answers: 1
question
Biology, 22.06.2019 01:30
Plz ! ive been stuck on this forever
Answers: 1
question
Biology, 22.06.2019 02:30
Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.
Answers: 1
question
Biology, 22.06.2019 10:20
Crossing over is a method of (blank)?
Answers: 1
You know the right answer?
3. The amount of in the soil was no longer a limiting factor in crop production after chemists disc...
Questions
question
Mathematics, 23.07.2019 02:00
question
History, 23.07.2019 02:00
question
Spanish, 23.07.2019 02:00