Which of the following can be general symptoms of pesticide poisoning?

General symptoms of pesticide poisoning can include both headaches and nausea, which are common reactions to exposure to harmful chemicals. When a person is exposed to pesticides, these substances can enter the body through skin contact, ingestion, or inhalation, leading to a variety of systemic effects.

Headaches may arise from several mechanisms, such as the neurotoxic effects of certain pesticides that disrupt normal brain function or as a result of other symptoms like fatigue or dehydration caused by the poisoning. Nausea can be a direct response of the body to harmful substances, often as a defensive reaction to expel toxins.

Choosing 'all of the above' recognizes that both of these symptoms are significant indicators of potential pesticide poisoning, reflecting their role as part of a broader set of symptoms experienced by individuals affected by exposure to these chemicals.