29. what will most likely be the result as humans move into new areas, forests are clear cut and housing
developments are built
a global temperatures will decrease because trees are removed
by many organisms will lose their homes because their habitats have been destroyed
c. better sanitation in the area will reduce the amount of pollution
d. the rainfall in the area will increase because there will be increased runoff

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

Which of the following is a good strategy when it comes to desserts

About how much of the cell mass is watet