Given below are two statements : Statement I: Aquatic weeds are fast-growing weeds that can attain very high productivities when cultivated on nutrient-rich wastewater such as domestic sewage. Statement II: Water hyacinth, Salvinia and duckweed are some examples of aquatic weeds. In the light of the above statements, choose the correct answer from the options given below:

Given below are two statements : Statement I: Aquatic weeds are fast-growing weeds that can attain very high productivities when cultivated on nutrient-rich wastewater such as domestic sewage. Statement II: Water hyacinth, Salvinia and duckweed are some examples of aquatic weeds. In the light of the above statements, choose the correct answer from the options given below: Correct Answer <span style="">Both Statement I and Statement II are true</span>

• Aquatic weeds are unwanted and undesirable vegetation that reproduce and grow in water. If left unchecked may choke the water body posing a serious menace to pisciculture.
  • They provide breeding grounds and harbour predatory insects. 
  • Limit living space for fish  
  • Reduce water movement, thereby limiting oxygen circulation in water.
  • Some weeds release toxic gases that cause fish death and add foul smell to the water.
• Many shallow, nutrient-rich ponds, domestic sewage, lakes, and drainage ditches provide ideal conditions for abundant aquatic weed growth.
• Nutrient-rich water like domestic sewage contains excessive phosphorus and nitrogen that can cause aquatic weeds and algae to grow excessively.
• In nutrient-rich water, weeds and algae can become out of balance with other plants and animals. They quickly absorb nutrient-rich water and use it to produce more weeds and algae. 
• Water hyacinth is a free-floating and flowering invasive aquatic weed that blocks waterways and limits boat traffic, recreation, flood control and wildlife use
• Salvinia is a floating aquatic fern/weed that thrives in slow-moving, nutrient-rich, warm, freshwater.
• Duckweeds are tiny, free-floating, aquatic green weeds commonly found in lentic or slowly moving water bodies.

So from the above explanation, we can say that Both Statement I and Statement II are true.