Which statement about atmospheric pressure near earth’s surface is true?

a.
it increases as you move away from earth’s surface.
b.
it decreases as you move away from earth’s surface.
c.
it is constant throughout earth’s atmosphere.
d.
it is measured using a thermometer.

Astudent conducts an experiment to determine how the amount of water given to a plant affects it growth what is the dependent variable for this experiment

Chinese privet is a plant that is native to china. over 150 years ago, chinese privet was introduced to the united states as a fast-growing shrub that serves as an excellent privacy hedge. with no natural herbivore, chinese privet quickly established itself and spread in natural areas throughout the southeast and eastern seaboard of the united states. its dominance in these areas has jeopardized the survival of native plant species. chinese privet provides evidence that introducing non-native organisms can cause environmental damage integrated pest management strategies will not decrease chinese privet populations american gardeners can easily control the spread of chinese privet non-native plant species have type i survivorship curves

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box