HELPPercussion instruments are musical instruments that make noise when they are hit with an object. Which of these are percussion instruments? Check all that apply. a clarinet, which makes sound when air is blown into a woodwind mouthpiece

a drum, which makes sound when a mallet hits its surface

a cymbal, which makes sound when it is crashed against another cymbal

a trumpet, which makes sound when air is blown into a brass mouthpiece

a violin, which makes sound when a bow slides across strings

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Many colleges review students’ scores on the _ or _ before deciding whether to offer them admission.

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.