Correct option is C. Rachel carson’s warning in silent spring was focused on the misuse of pesticides.
Rachel was concerned because pesticide misuse can cause significant and serious harm to humans, animals, and crops in general.
<h3>What can misuse of pesticide lead to?</h3>
Pesticide poisoning can result from pesticide misuse, with symptoms ranging from mild skin irritation to seizures and death. Poisoning has a wide range of effects depending on the dosage and level of exposure.
Secondary pest outbreaks occur when the use of a pesticide to reduce densities of an unwanted target pest species triggers subsequent outbreaks of other pest species, potentially fueling the dramatic increase in insecticide resistance.
To learn more about misuse of chemicals from the given link
The left side of the heart receives oxygenated blood from the pulmonary vein and pumps it into the aorta, while the right side of the heart receives deoxygenated blood from the vena cava and pumps it into the pulmonary vein. The pulmonary vein and aorta also have valves connecting them to their respective ventricle.
