give your theory or idea on why time is 24 hours, why are their 60 minute's in an hour and 60 seconds in a minute. Why did early civilizations pick these particular numbers for time. Give your response with a paragraph explaining your theory, idea and or argument.

Describe how humans have affected the numerous pathways and reservoirs in the carbon cycle that have contributed to climate change. Find three examples where positive feedback in the environment is likely contributing more carbon dioxide to the atmosphere that is not a result of human activities.

Discuss the factors contributing to Antarctica’s extreme cold. Discuss why Antarctica is significant to studying global climate change. Discuss the changes of Alpine glaciers and their causes.

(a) Tobaco Berhad, with the Ringgit Malaysia as its functional currency, purchases plant from a foreign entity for $18 million on 31 May 2019 when the exchange rate was $2 to RM1. The entity also sells goods to a foreign customer for $10.5million on 30 September 2019, when the exchange rate was $1.75 to RM1. At the entity’s year end of 31 December 2019, both amounts are still outstanding and have not been paid. The closing exchange rate was$1.5 to RM1. Required: Explain the accounting treatment for both sale and purchases transactions for Tobacco Berhad.

what is the difference between bin, silo, and hopper in solid handling? is there any size limit to each of them? and could you please provide me with reference (preferably textbook)

1. A steam turbine operates adiabatically with a steam rate of 25 kg/s. The steam is supplied at 300 kPA and 400 ^oC and discharged at 40 kPA and 100 ^oC. Use steam tables to solve this problem.

a. Determine the power output of the turbine.

b. Determine the power output of turbine for reversible process.

What could be the national/global, economic, cultural, managerial-organisational legal, societal and political impacts of a macro project that aims to break down oxygen and water from the moon crest and bring the same to the earth surface.

In conjunction with this research and development, the project also focus on creating a livable space station in moon for refueling the spaceships travelling from earth to moon & back to earth. What is the best marketing plan and public relations strategy for this project.?

Methanol is produced by reacting carbon monoxide and hydrogen. A fresh feed stream containing CO and H2 joins a recycle stream and the combined stream is fed to a reactor. The reactor outlet stream flows at a rate of 350 mole/min and contains 10.6 wt% H2 , 64 wt% CO and 25.4 wt% CH3OH. This stream enters a cooler in which most of the methanol is condensed. The liquid methanol condensate is withdrawn as a product, and the gas stream leaving the condenser – which contains CO, H2 and 0.4 mole % uncondensed CH3OH vapor – is the recycle stream that combines with the fresh feed. Determine a) the molar flow rates of CO and H2 in the fresh feed b) the production rate of liquid methanol (mol/min) and c) the molar flow rate of the recycle stream.

What percentage of the earth’s water is fresh water?

Why is it such a big problem to be cycling massive and growing volumes of grains and oil- seeds through livestock?

What are overrides? Use examples from the chapter.

Why are antibiotics used in animal feed, and why is this problematic?

Fundamental imbalances in the distribution of the world’s food supply is caused by cycling humanly edible grains and oilseeds through animals to produce flesh, eggs, and milk, destroying much more protein and other usable plant nutrition than it contributes to human societies (111). Explain.

58. Are keeping global CO2 emissions constant at current level over the next several decades enough to eventually stabilize atmospheric CO2 concentration at 550 ppm and Explain why or why not? and how would global temperature and sea level respond to constant emissions?

What is the cryosphere and how has this been affected by climate change? Why do scientists describe the changes in the cryosphere as positive feedback in the environment? How has this contributed to the rapid warming/polar amplification in the Arctic?

Explain why the first observed rising of the bright star Sirius in the sky just before dawn happens at the same time each year. How did ancient Egyptians take advantage of this?

1 .List THREE short-term and THREE long-term health effects that can occur when exposed to VOCs

2. Explain how the ozone layer is destroyed in the following ways:naturally and human activity

1. 3. Explain how destruction of the ozone layer contributes to global warming.
2. 4. What was the 1987 Montreal Protocol about?   
3. The book she used is " Energy" Science, Policy,and the Pursuit of Sustainability

   Edited by: Robert Bent, Lloyd Orr, and Randall Baker

Because of environmental reasons, lead acid batteries will be converted to NickelCadmium (NI-CD) Batteries. Calculate theoretical efficiency change for the assuming all cells have same molar concentrations.

On average, more solar energy falls in the equatorial regions than in desert regions. Why then are deserts hotter on average – as measured by the dry bulb temperature - than the tropics?