Q: Valence electrons also determine how wellif at allthe atoms of an element conduct what? Choices: - water - pollution - light - electricity A:
electricity

Q: Production of abnormal white blood cells occurs in what cancer, which is the most common form in children? Choices: - Brain - Breast - Bone - leukemia A:
leukemia

Q: What is the organ in which gas exchanges take place between blood and air? Choices: - heart - skin - kidney - lungs A:
lungs