Please help!! Which of these choices is a disadvantage of the Endangered Species Act?

A. Increases environmental awareness

B. Has the goal of increasing wild
populations, which can be complex

C. Can save species from extinction

D. Restores balance to ecosystems

List charasteristics of athenosphere

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?

Astudent wants to compare the amounts of co2 given off by yeast provided with different amounts of sugar. the student places a balloon over each container to catch the released co2. which observation is a qualitative observation the student can make?