A geologist is studying a new soil profile. In analyzing the profile, she finds that the topsoil is rich in organic material. She concludes that this soil would be great for growing crops.

What materials combined to form the topsoil?

A. weathered bedrock and wind-blown sand
B. decomposed humus and wind-blown sand
C. decomposed plant litter and weathered parent material
D. deposited sediment and decomposed plant litter

help me please!! hurry up timed Which of the following are the two primary gasses found in the Earth's atmosphere? A. nitrogen and oxygen B. nitrogen and carbon C. hydrogen and carbon D. carbon and helium Sumer is important in the world history because it was - answer here What is the result of converting 6160 yards to miles? (Remember that 1 mile 1760 yards.)A) 2.5 milesB) 3.5 miles C) 3 miles D) 4 miles 16/20 in fraction form 1. Define the term policy and give one concrete example for each of the following at the national level: foreign policy, economic policy, and social policy.2. Describe the federal system of government in the United States in terms of delegated, concurrent, and reserved powers. 3. Give two examples of delegated powers, two examples of concurrent powers, and two examples of reserved powers.4. How has the role of the federal government in social policy action changed since the onset of the Great Depression?5. Describe the major shift in foreign policy under President George W. Bush and the approach President Barack Obama has taken in foreign policy, 2009-2011.6. Briefly describe the powers and typical actions of a municipal government.7. Briefly describe the mayor-council form of municipal government. The tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produced over three weeks. Printer B uses $15 in ink every hour. What is the ink cost for each card coming from printer B?A. $0.30B. $0.50C. $1.00D. $1.50 solve the inequality and enter your solution as an inequality in the box below, using 48 if a lawyer bills $350/hour, how much does he makes every second? how much does he make per year? assume he works 50 hours per week, 48 weeks per year. 0.00000000005 in scientific notation show your work the ratio of the mass of a substance to its volume is called What was the cause of Shays Rebellion? n(17+x)=34xrI need to solve for x Can someone help me please Bernard had a 2.2kg sack of sugar. He used 750g of sugar in a recipe. How many kilograms of sugar are left? Who would make the following statement The purpose of the constitution is to limit the power of the federal government, not the American people?A) FederalistB) Anti-FederalistC) LoyalistD) Republican What is the slope of the line shown below? The simple interest I on an investment of P dollars at an interest rate r for t years is given by I=Prt. Find the time it would take to earn $1400 in interest on an investment of $27,000 at a rate of 4.2%. what is 4/3s-35-4 please help :). Can someone help me get Superhero slogans for the cell organelles? (has to relate to their function) I don't need one for all, a few ideas will suffice. Thank you!Ex; Lysosome-"Taking the bad, giving the good!"Nucleus- control center of the cellCell membrane- controls what enters and leaves the cellCytoplasm-holds substances in placeRibosomes-protein maker of the cellEndoplasmic Reticulum- transports things within the cellGolgi Body/Apparatus- sorts and packages protein Cell Wall- supports the PLANT cell and gives it its rigid shapeChloroplast- makes food using energy of sunlightVacuole-storage spaces for food and waterChromosomes- blueprints of the cell. contains info abt characteristics