A number of food chains linked together

Which of these statements is correct about photosynthesis and decomposition? Both release carbon dioxide into the atmosphere. Both absorb carbon dioxide from the atmosphere.

An atom with two protons, three neutrons and two electrons would have a mass of about how many atomic mass units?

How does a lever apply forces with advantage? It increases the force needed to move an object. B. It decreases the distance needed to move an object. C. It gives the advantage of change in direction of the effort force. • D.

A 0.2 kg plastic cart and a 20 kg lead cart can both roll without friction on a horizontal surface. equal forces are used to push both carts forward for a distance of 1 m, starting from rest.

Why coulomb's law apply only to spherically symmetric charges?

Rewrite the below linear equation in slope-intercept form: 5x + 8y = 16 Select one: A. y = 8/5x - 2 B. y = 16/5x + 3 C. y = - 5/2x + 8 D. y = - 5/8x + 3

Many scientists do not believe in astrology because

How do the properties of sound waves change as they spread out in a spherical pattern?

Sandra moves 14 m in 2 minutes. What is Sandra's average velocity (in m/s) ?

Consider two waves X and Y traveling in the same medium. The two carry the same amount of energy per unit time, but X has one-seventh the amplitude of Y. What is the ratio of their wavelengths? (λY/λX=?)