Do boys or girls have a higher resting heart rate?
Questions
5&6
...
Answers: 3
Biology, 21.06.2019 16:00, caitlin89
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
Answers: 2
Biology, 22.06.2019 07:30, jaylabazemore
What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex
Answers: 2
History, 03.06.2020 20:03
Mathematics, 03.06.2020 20:03
French, 03.06.2020 20:03
Mathematics, 03.06.2020 20:03
Mathematics, 03.06.2020 20:03
Chemistry, 03.06.2020 20:03
History, 03.06.2020 20:03
Mathematics, 03.06.2020 20:03