Q: What substances in a car battery can be melted and recycled? Read this paragraph and choose the correct option from the provided answers: Lead is still widely used in car batteries. In recent years, battery recycling is becoming very common - about 98% of car batteries a recycled today. The used batteries go to a processing plant where they are crushed and placed in a tank. The lead sinks to the bottom and can be separated, melted and used again. Plastic materials float to the top, are separated, and melted. The plastic can then be used in a number of applications. The battery acids are treated with chemicals to neutralize them before they are disposed of. Choices: - lead and steel - lead and sodium - steel and sodium - lead and plastic A:
lead and plastic

Q: The cecum is the first part of what structure, where wastes in a liquid state enter from the small intestine? Read this paragraph and choose the correct option from the provided answers: http://www. explainthatstuff. com/how-geiger-counters-work. html. Choices: - duodenum - esophagus - appendix - large intestine A:
large intestine

Q: How do bipedal creatures walk? Read this paragraph and choose the correct option from the provided answers: Birds are endothermic tetrapod vertebrates. They are bipedal, which means they walk on two legs. Birds also lay amniotic eggs with hard, calcium carbonate shells. Although birds are the most recent class of vertebrates to evolve, they are now the most numerous vertebrates on Earth. Why have birds been so successful? What traits allowed them to increase and diversify so rapidly? Birds can vary considerably in size, as you can see from the world's smallest and largest birds, pictured in Figure below . The tiny bee hummingbird is just 5 centimeters (2 inches) long, whereas the ostrich towers over people at a height of 2.7 meters (9 feet). All modern birds have wings, feathers, and beaks. They have a number of other unique traits as well, most of which are adaptations for flight. Flight is used by birds as a means of locomotion in order to find food and mates and to avoid predators. Although not all modern birds can fly, they all evolved from ancestors that could. Choices: - on twelve legs - on six legs - on four legs - on two legs A:
on two legs