Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
Stuff like grass and trees. anything that makes its own energy is a producer.
Answer:
the first trophic level shows a primary producer
It as an element with an atomic number of 6 in the periodic table
Answer:
B, Carries Carbon dioxide-rich blood from the lungs to the heart
Explanation:
