You weigh two different objects on the same scale in the same location on earth. the weights are different. what must be different about the two objects?
a. moving at different speeds
b. width
c. mass
d. momentum
e. color

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing