Answer the following question given this paragraph: A protein molecule is made from one or more long chains of amino acids, each linked to its neighbors by covalent bonds. Multiple chains of a protein are held together by weaker bonds. Q: What kind of molecule is made from one or more long chains of amino acids? Choices: - membrane molecule - amino molecule - chain molecule - protein molecule A:
protein molecule
Answer the following question given this paragraph: Figure 18.13 The honeycreeper birds illustrate adaptive radiation. From one original species of bird, multiple others evolved, each with its own distinctive characteristics. Q: What kind of radiation is observed in honeycreeper birds? Choices: - spontaneous - symbiotic - destructive - adaptive A:
adaptive
Q: Answer the following question given this paragraph: As the name suggests, open-pit mining creates a big pit from which the ore is mined. Figure below shows an open-pit diamond mine in Russia. The size of the pit grows as long as the miners can make a profit. Strip mines are similar to open-pit mines, but the ore is removed in large strips. A quarry is a type of open-pit mine that produces rocks and minerals that are used to make buildings and roads. Q: A quarry, which produces rocks and minerals used to make buildings and roads, is an example of what type of mine? Choices: - strip mine - fracking - gold mine - open-pit mine A:
A: open-pit mine
Question: Answer the following question given this paragraph: In the absence of a net force, objects move in a straight line. If they turn that is, if their velocity changes, even only in direction there must be an applied force. Forces which cause objects to turn around continuously in a circle are known as centripetal forces. When an object moves in a circle its velocity at any particular instant points in a direction tangent to the circle. The acceleration points towards the center of the circle, and so does the force acting on it. This is only natural, when you think about it if you feel a force pushing you towards your left as you walk forward, you will walk in a circle, always turning left. Q: Forces which cause objects to turn around continuously in a circle are known as? Choices: - frictional forces - tension forces - hydrodynamic forces - centripetal forces A:
Answer: centripetal forces
*Question*
Answer the following question given this paragraph: A: The copper has become tarnished. The tarnishalso called patinais a compound called copper carbonate, which is green. Copper carbonate forms when copper undergoes a chemical reaction with carbon dioxide in moist air. The green patina that forms on copper actually preserves the underlying metal. That's why it's not removed from the statue. Some people also think that the patina looks attractive. Q: What compound gives tarnished copper it's green color? Choices: - bronze - zinc - brass - copper carbonate A:
**Answer**
copper carbonate
(Question)
Answer the following question given this paragraph: Exposed rocks in desert areas often develop a dark brown or black coating called desert varnish ( Figure below ). Wind transports clay-sized particles that chemically react with other substances at high temperatures. The coating is formed of iron and manganese oxides. Q: What is the term for the dark brown or black coating found on exposed desert rocks, which is formed of iron and manganese oxides? Choices: - desert patina - desert shadow - desert rust - desert varnish A:
(Answer)
desert varnish