Question

3a. nitrogen is a key ingredient in which of the following?
choose an option
a fertilizer
b sod
c mulch
d cement
3b. select a clip from the video that supports your answer.
learn how.
create video clip
3c. what are the benefits and drawbacks of this nitrogen - based product?
write your answer here...

Explanation:

3A

Nitrogen is essential for plant growth, and fertilizers often contain nitrogen to enhance soil fertility. Sod (grass and soil), mulch (organic/inorganic covering), and cement (construction material) don't rely on nitrogen as a key ingredient like fertilizer does.

For nitrogen - based fertilizers (the product here):

• Benefits:
• Promotes plant growth by providing a key nutrient (nitrogen) that is vital for chlorophyll production, which is necessary for photosynthesis. This leads to increased crop yields, better plant health, and greener, more vigorous vegetation.
• Helps in improving the quality of crops, for example, increasing the protein content in food crops.
• Drawbacks:
• Can cause water pollution through runoff. When excess fertilizer is washed into water bodies, it leads to eutrophication, where algae grow rapidly, depleting oxygen in the water and harming aquatic life.
• Over - application can damage plants, causing "burning" of roots or leaves due to osmotic stress.
• Can contribute to air pollution. For instance, nitrogen - based fertilizers can release nitrous oxide, a potent greenhouse gas, and ammonia, which can form particulate matter in the atmosphere.

Answer:

A. Fertilizer

3C