1. what organismsare involved on your chosen picture? _ 2. what type of interaction exist between these organisms? _
3 which organism benefited from the interaction? _
4. which organism is harm from the interaction? _
5. isthe given interaction beneficial or harmful? _

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

0.09 moles of sodium sulfate in 12 ml of solution

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils