Christopher is given identical volumes of two different solutions. He hypothesizes that solution A has a higher water concentration than solution B. Which experimental design would best allow him to test his hypothesis?

A.) Place five drops of vegetable oil in solution A and five drops of mineral oil in solution B. Make note if the oils sink or float.

B.) Mix solution A and solution B together in a large graduated cylinder. Measure the mass and the total volume of the combined solutions. Make note of the density of the combined solutions.
C.)Use litmus paper to test the acidity and basicity of solution A and solution B. Make note if the paper turns red or blue.

D.)Place solution A in a membrane that is permeable to water. Then, place the membrane full of solution A into a beaker full of solution B. Make note of the direction in which water flows.

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Me plz he did not infringe upon the policy making powers that he felt the constitution gave congress. but the determination of foreign policy became preponderantly a presidential concern. when the french revolution led to a major war between france and england, washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-british. rather, he insisted upon a neutral course until the united states could grow stronger. which provides the best objective summary of this excerpt? president washington made a good choice when he decided not to accept the recommendations of his advisors and instead insisted that the united states stay neutral during the war between france and england as president, washington believed that the united states should remain neutral in foreign policy even though he had advisors who recommended that he take sides during the war between france and england. washington did not make policy decisions during his presidency because he did not want to interfere with the policy-making powers that the constitution gave congress. washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-britis

Describe the impact of deforestation of both abiotic and biotic factors within the tropical rainforest.