Which one of the following is an example of an indicator?

A. High concentration

B. Presence of H - ions in solution

C. Litmus paper

D. Electricity

Recently, the media, always trying to make things sound sensational, have started to call totally eclipsed moon "the blood moon." Why does the Moon look reddish to us when there is a total lunar eclipse?

Why did Aristotle's geocentric theory fail to match the expected predictions? A) All stars appear to move in different directions. B) A few celestial objects appear to have retrograde motion.

Can you access an instance variable from a static method? explain why or why not.

How long does it take for a particle to move with initial velocity 80km/hr to 100km/hr in 100m

Two balls are placed near one another and hang down, as shown below. 2 overlapping circles. The left circle is labeled Conduction. The right circle is labeled Induction. An X is in the nonoverlapping part of the left circle.

Write a good scientific question that can be answered by Guadalupe based on what is described above. Label the independent and dependent variable within your question.

Which one is more accurate M1 = 1.0cm + - 0.1cm M2 = 0.10cm + - 0.01cm M3 = 0.100cm + - 0.001cm A. M1 B. M2 C. M3 D. All have same accuracy

What is the name of the group of elements that are human-made and do not occur in nature?

The waters of a lake will be most layered in which season A. winter B. spring C. summer D. fall

a 160kg space vehicle is traveling along a straight line at a constant speed of 800. meters per second. the magnitude of the net force on the space vehicle is