Answer the following question given this paragraph: Epilepsy is a disease that causes seizures. A seizure is a period of lost consciousness that may include violent muscle contractions. It is caused by abnormal electrical activity in the brain. The cause of epilepsy may be an infection, a brain injury, or a tumor. The seizures of epilepsy can often be controlled with medicine. There is no known cure for the disease, but children with epilepsy may outgrow it by adulthood. Q: What type of activity in the brain causes epilepsy? Choices: - hormone imbalance - toxic overload - bleeding - abnormal electrical activity A:
abnormal electrical activity

Answer the following question given this paragraph: specialized tissue inside plant leaves where photosynthesis takes place. Q: What important process takes place in specialized tissue inside plant leaves? Choices: - pollination - mitosis - reproduction - photosynthesis A:
photosynthesis

Answer the following question given this paragraph: The anodes in each cell of a rechargeable battery are plates or grids of lead containing spongy lead metal, while the cathodes are similar grids containing powdered lead dioxide (PbO2). The electrolyte is an aqueous solution of sulfuric acid. The value of E for such a cell is about 2 V. Connecting three such cells in series produces a 6 V battery, whereas a typical 12 V car battery contains six cells in series. When treated properly, this type of high-capacity battery can be discharged and recharged many times over. As the cell is discharged, a powder of PbSO4 forms on the electrodes. Moreover, sulfuric acid is consumed and water is produced, decreasing the density of the electrolyte and providing a convenient way of monitoring the status of a battery by simply measuring the density of the electrolyte. Q: The anodes in each cell of a rechargeable battery are plates or grids of lead containing spongy lead metal, while the cathodes are similar grids containing powdered what? Choices: - carbon dioxide - straight dioxide - coal - lead dioxide A:
lead dioxide