A persn uses 750 kcal on a long hike. Calculate the energy used in both units:

a. joules

b. kilojoules

What is the name of group 6a, 7a, and 8a

ions containing oxygen are colourless, is this true?

Which best compares the roles of nitrogen fixing bacteria in certain Decomposers In the nitrogen cycle

a man a man weighing 800 and climbs up a flight of stairs to a height of 15 m in 12 seconds what is the man's average power output

Which of the following is not true of oseudoscience

Commercial fertilizers, which are made by humans, are used to enrich soil for healthier crops. However, erosion may carry the fertilizer chemicals to the oceans. The presence of these chemicals may cause certain kinds of algae to reproduce rapidly.

A cube of iron has a temperature of 35°C. It is placed on top of a hot surface with a temperature of 175°C. What will happen to the iron? A) Its temperature will decrease. B) Heat will flow from the hot surface into the iron.

Density differences cause the

Why can't you balance a chemical equation by changing the subscript?

Which level of organization is best represented by the corn plant? tissue, the highest level of organization organ, the lowest level of organization organism, the level of organization directly above organ system organ system, the level of