Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone. He also knows that limestone reacts with acids and that chemical reactions are affected by temperature. With this in mind, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone. Which statement describes the correct plan for his procedure?

The temperature, the amount of damage to the limestone, and the type of acid are controls. The amount of acid and the type of limestone are variables.
The temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables.
The amount of acid, the type of limestone, and the type of acid are controls. The temperature and the amount of damage to the limestone are variables.
The temperature, the amount of acid, and the amount of damage to the limestone are controls. The type of limestone and the type of acid are variables.

Question

16-06-2017
Social Studies

contestada

Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone. He also knows that limestone reacts with acids and that chemical reactions are affected by temperature. With this in mind, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone. Which statement describes the correct plan for his procedure?

The temperature, the amount of damage to the limestone, and the type of acid are controls. The amount of acid and the type of limestone are variables.
The temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables.
The amount of acid, the type of limestone, and the type of acid are controls. The temperature and the amount of damage to the limestone are variables.
The temperature, the amount of acid, and the amount of damage to the limestone are controls. The type of limestone and the type of acid are variables.

Respuesta :

Otras preguntas

Three friends ate dinner at a restaurant. The friends decided to add a 15% tip and then split the bill evenly. Each friend paid $10.35. The total for dinner bef

The largest wheel of a penny-farthing- the precursor to the modern bicycle - has a diameter of 1.5 meters. If the largest wheel of a penny-farthing has rotated

Which best describes Nelson Mandela's role in ending apartheid? (Points : 5)

Which is bigger, 20% of 400 or 1/4 of 360?

Which word in the sentence is the direct object? I brushed the horses at the stable all afternoon. A. I B. horses C. afternoon D. brushed

Which European country does not include territory that was once part of the Roman Empire? A. Ireland B. Greece C. Germany D. Spain

What is the area of a shape that has the length of 10cm and the height of 5cm?

Which was a lasting impact of the U.S. Constitution? (Points : 5)

Henry III was Holy Roman Emperor when Pope Gregory VII came to power in 1073.

In which way were Native American groups alike? A. all believed in the same gods B. all farmed maize or corn C. all relied on horses and buffalo D. all depended

Аноним Аноним · Answer 1 · 2017-06-30T12:01:21+02:00

The correct answer would be the second option. The correct plan for his experiment would be that the temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables. To determine the degree of damage of the acid it would be best that the amount of acid is the manipulated variable while everything else are assumed constant.

ReDxBvhh ReDxBvhh · Answer 2 · 2018-08-31T23:37:25+02:00

ReDxBvhh ReDxBvhh

31-08-2018

B. The temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables.

Answer Link