With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH. Would Jim's solution become more or less acidic if he increased the concentration of hydrogen atoms in it more acidic or less acidic?
more acidic
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Lower rock layers were laid down earlier, so they are assumed to contain older fossils. Everett dug down 100 feet while Jamie dug down 10 feet. Who is more likely to find old fossils Everett or Jamie?
Everett
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Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration. A population of squirrels in a local forest had more food available to them this spring than they did last spring. During which spring will more squirrels leave the area to live somewhere else this spring or last spring?
last spring
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The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes. Paul started at the base of a mountain and climbed to its peak. The sky was clear and the sun was beating down on him all day. However, he noticed there was a clear temperature difference between the surface's temperature and the temperature at the top of the mountain peak. Where would he feel more heat Surface or Mountain Peak?
Surface
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