Energy moves through an ecosystem, is known as a

a. habitat.

c. food net.

b. food chain.

d. food web.

what is the pressure produced by a kilogram of lead on a horzontal surface if its area it rests on is 0.02m^2?

How much kinetic energy is in a 0.145kg baseball thrown at 35.8 m/s?

How is a well different from a spring? A. It forms above ground B. It is made by humans C. It is naturally occurring D. It is difficult to find

What kinds of bonds can happen between the elements of a compound

What is the study of physics

Which of the following are the top two job expectations of people who career plan? Select all that apply. A. Hours B. benefits C. type of work D. coworkers E. security

Define the term volt.

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?