Maths
How deep is the silt layer if (teacher post image) was the soil sample
2.0 cm
Think about the game we played at the beginning of the unit. How could a societies resource needs change over time?
Answers will vary
What are the four main types of mining
Solution Mining, Underground mining, Open Pit mining, and Placer Mining
What are the four components in soil?
Air, Water, Minerals, and Organic matter
What are the advantages of Sand in soil
Lets water drain easy, high aeration (air content), and very workable
What is the formula for calculating percents
(Parts/total) x 100 = Percentages
Name the four key natural resources our society uses?
Minerals, Fresh water, Fertile soil, Fossil Fuels
What type of mining is Climax primarly doing?
Mainly Open pit
pH refers to what? What is considered the Neutral number? Bonus 100 pts, how much more Hydrogen Ions (H+) does a pH 4 have compared to a pH 6?
pH refers to the acidity or alkalinity of the soil. 7 is considered neutral. pH 4 has 100x more Hydrogen Ions than pH 6.
Why don't we ban fossil fuels
Fossil fuels account for 70% of the United States energy needs
What is the percent is 3.7 cm of 7 cm
53%
Which resource do you think is the most important? Any answer works but you must give me three reasons why!
Answers will vary
Uses water or a solution that is injected into the Earth that then dissolves the minerals like salt dissolves in water
Why is loam soil considered to be the best soil for growing crops?
What might happen if we run out of natural resources? Give one specific example of a consequence of running out of one of our key natural resources.
Societies have collapsed because of lack of natural resources. Other answers will vary
What is the density of an object with a mass of 25 g and occupies a space of 15 mL
1.67 g/mL
What does soil fertility refer to?
Soil's ability to supply the nutrients for plant growth
What are two advantages and two disadvantages of open pit mining?
Advantages: Efficient extraction of resources, Lower cost compared to underground mining, safer work environment, and can do large scale extraction
Disadvantages: Severe environmental impact, water pollution from minerals exposed to air, social disruption and community displacement
Up, down, and all around refers to what chemicals and which part of the saying does each of the chemical refer to?
Nitrogen- Up
Phosphorus- Down
Potassium (Potash)- All around
if chat GPT is using all the water where is it going
Mainly for cooling the computers. Computation requires energy. Any transfer of energy generates thermal energy.
What is the percent composition of each of these layers (Teacher post image)
(0.5/6) x 100 = 8.3% Clay
(2/6) x 100 = 33.3% Silt
(3.5/6) x 100 = 58.3% Sand
How are renewable and non-renewable resources different? Give 2 examples of each.
Renewable resources are resources that are replenished at the same rate we use them.
Renewable; Water, sunlight, etc
Nonrenewable; Fossil fuels, minerals, fertile soil, etc
Why would a company choose to use underground mining instead of solution mining for a vein of ore that is deep underground?
The mineral the company is trying to mine cannot be dissolved, high risk of contamination of ground water, doesn't have the geology that allows it, mineral is above the water table
Use the soil triangle to identify a soil that has 25% sand, 40% silt, 35% clay. Give one advantage and one disadvantage of that soil.
Clay Loam; has more clay than regular loam. Clay has the advantages of having higher nutrient content and higher water holding capacity but less workability, aeration, and does not drain as easy
How does nature create natural resources? (100 points for natural resource)
Minerals are through tectonics shifts, Fresh water through the water cycle, fertile soil through volcanic activity and fossil fuels through millions of years of dead life