Answer:
20
Explanation:
number of protons+ number of neutrons= mass of atom
19+n=39
n=39-19=20
number of neutrons=20
answer: the congo river is located in angola, africa. it’s also the second longest river in africa.
Answer: A, C, D, and E
Explanation:
•CAFOs are facilities where a large number of animals are housed and fed in a confined space.
•CAFOs provide a means of producing great quantities of manure to fertilize fields organically (due to the housing of several animals in one location).
•CAFOs also provide for an experimental plan to test the effectiveness of antibiotics by animal pharmaceuticals.
•CAFOs also initiate the introduction of specially formulated feeds like compacting of grain for use as a nutrient supplement for cattle.
Conclusively, all the aforementioned brings about low cost of animal products (e.g. meat, milk and egg) and improved economic growth.
The term that takes into consideration "how humans adapt to and modify the environment is human-environment interaction. Correct answer:C
The term denotes the interactions between the human social system and his environment (the erst of the ecosystem). These interactions include how humans depend on the environment, how humans modify the environment and the way humans adapt to the environment.
Solar radiation is radiation heat transfer into the biosphere and trapped by the plant to the form of chemical energy. The motion of air and gas in biosphere due to contact with cold or hot surface involve conduction and radiation. The wind <span>carrying heat is convection.</span>
