Potassium Permanganate is used for purifying drinking water, because

A. it is a sterilising agent

B. it dissolves the impurities of water

C. it is a reducing agent

D. it is an oxidising agent

Changes in the skin color of skin are often an indication of a homeostasis imbalance which would color Suggest Addison disease?

What is the risk when a pwc passes too closely behind another boat?

This is a slide of human cheek cells. After scraping the inside of their mouths, students in Ms. Gordon's class smeared the swab on a slide and stained them blue. These cells are parts of a large, complex organism, a human. But these cells.

If you are swimming upstream (i. e., against the current), at what speed does your friend on the shore see you moving? express your answer in meters per second.

Is it possible for the electric field between two positive charges to equal zero along the line joining the two charges? is it possible for the electric field between two positive charges to equal zero along the line joining the two charges?

Which of the following values represents an index of refraction of an actual material? A. 0 B. 1 / 4 C. 5 / 4 D. 1 / 2

Which statement best describes the effect of scientific advances on society? A. They always have a positive impact on society. B. They are inspired by the needs of society. C. they do not affect society beyond the community level. D.

Which way does wind blow, A. horizontally, B. Only from east to west, C. Only from West to east, D. vertically

If you were asked how to evaluate scientific evidence, what would you would want to include in your answer?

What caused the slope to change around 1905 and 1906?