Question: Q: What is produced when sulfur and oxygen combine? Read this paragraph and choose the correct option from the provided answers: Sulfur oxides include sulfur dioxide (SO 2 ) and sulfur trioxide (SO 3 ). Sulfur oxides are produced when sulfur and oxygen combine. This happens when coal burns. Coal can contain up to 10 percent sulfur. Choices: - treatment oxides - Solid oxides - ethanol oxides - sulfur oxides A:
Answer: sulfur oxides

Question: Q: What is the growing root tip protected by? Read this paragraph and choose the correct option from the provided answers: 30.3 Roots Roots help to anchor a plant, absorb water and minerals, and serve as storage sites for food. Taproots and fibrous roots are the two main types of root systems. In a taproot system, a main root grows vertically downward with a few lateral roots. Fibrous root systems arise at the base of the stem, where a cluster of roots forms a dense network that is shallower than a taproot. The growing root tip is protected by a root cap. The root tip has three main zones: a zone of cell division (cells are actively dividing), a zone of elongation (cells increase in length), and a zone of maturation (cells differentiate to form different kinds of cells). Root vascular tissue conducts water, minerals, and sugars. In some habitats, the roots of certain plants may be modified to form aerial roots or epiphytic roots. Choices: - root flap - tip cap - root hinge - root cap A:
Answer: root cap

Question: Q: What is it called when two species evolve matching traits? Read this paragraph and choose the correct option from the provided answers: Two species may often interact with each other and have a close relationship. Examples include flowers and the animals that pollinate them. When one of the two species evolves new traits, the other species may evolve matching traits. This is called coevolution . You can see an example of this in Figure below . The very long beak of this hummingbird co-evolved with the tubular flowers it pollinates. Only this species of hummingbird can reach nectar deep in the flowers. Choices: - Allopatric speciation - interconnection - spontaneous mutation - coevolution A:
Answer:
coevolution