You have been given a choice of four elements, lithium, magnesium, sulfur, and bromine. You must decide which two elements would form a compound that has two atoms of the metallic atom and one of the non-metallic atom in the final neutral compound. Which choice lists the two atoms with the correct formula for the compound?.

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

Aggregation is the process of all of your data. a. gathering b. analyzing c. collecting d. observing

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.