Refer to the graph in the figure to answer the following questions. a. If you were to climb to the top of Mount Everest, how many breaths of air would you have to take at that altitude to equal one breath at sea level? b. If you are flying in a commercial jet at an altitude of $12$ kilometers (about $39,000$ feet), about what percentage of the atmosphere's mass is below you ?

Read the following Mesopotamian poem.

"The rampant flood which no man can oppose, Which shakes the heavens and causes earth to tremble, In an appalling blanket folds mother and child, And drowns the harvest in its time of ripeness."

How does this poem represent the importance of the physical environment and religion in the lives of the Mesopotamians?

The overall reaction in a commercial heat pack can be represented as

$$4 \mathrm { Fe } ( s ) + 3 \mathrm { O } _ { 2 } ( g ) \longrightarrow 2 \mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } ( s ) \quad \Delta H = - 1652\ \mathrm { kJ }$$

How much heat is released when 1.00 g iron is reacted with excess $O_2?$

The overall reaction in a commercial heat pack can be represented as

$$4 \mathrm { Fe } ( s ) + 3 \mathrm { O } _ { 2 } ( g ) \longrightarrow 2 \mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } ( s ) \quad \Delta H = - 1652\ \mathrm { kJ }$$

How much heat is released when 4.00 moles of iron is reacted with excess $O_2?$

Write the letter for the word that best completes given sentence.
_______ The less ______ a liquid is, the more likely it is to ________ the surrounding environment; that is one reason why spills of some types of oil are more harmful to ecosystems than spills of other types of oil.
a. palpable...encumber
b. effulgent... attenuate
c. viscous...permeate

Write a program that displays a weekly payroll report. A loop in the program should ask the user for the employee number, gross pay, state tax, federal tax, and FICA withholdings. The loop will terminate when 0 is entered for the employee number. After the data is entered, the program should display totals for gross pay, state tax, federal tax, FICA withholdings, and net pay.

Input Validation: Do not accept negative numbers for any of the items entered. Do not accept values for state, federal, or FICA withholdings that are greater than the gross pay. If the sum state tax + federal tax + FICA withholdings for any employee is greater than gross pay, print an error message and ask the user to re-enter the data for that employee.

Dolbear's Law states the relationship between the rate at which Snowy Tree crickets chirp and the air temperature of their environment. The formula is

$$T=50+\frac{N-40}{4}$$

where: $\\$ T = temperature in degrees Fahrenheit and$

$$**N** = number of chirps per minute$$

$If$N=94$, find the temperature in degrees Fahrenheit,$T$.

The size of an undisturbed fish population has been modeled by the formula

$$p_{n+1}=\frac{b p_n}{a+p_n}$$

where $p_n$ is the fish population after $n$ years and $a$ and $b$ are positive constants that depend on the species and its environment. Suppose that the population in year 0 is $p_0>0$.

Show that $p_{n+1}<(b / a) p_n$.

Distinguish between a traceable fixed cost and a common fixed cost. Give examples of each.

For either a monatomic ideal gas or a high-temperature Einstein solid, the entropy is given by Nk times some logarithm. The logarithm is never large, so if all you want is an order-of-magnitude estimate, you can neglect it and just say $S \sim N k .$ That is, the entropy in fundamental units is of the order of the number of particles in the system. This conclusion turns out to be true for most systems (with some important exceptions at low temperatures where the particles are behaving in an orderly way). So just for fun, make a very rough estimate of the entropy of each of the following: this book (a kilogram of carbon compounds); a moose (400 kg of water); the sun $(2 \times 10^{30}\ \mathrm{kg}$ of ionized hydrogen).

A commercial fisherman fishes for haddock, sea bass, and red snapper. He is paid $1.25/lb for haddock,$0.75/lb for sea bass, and $2.00/lb for red snapper. Yesterday he caught 560 lb of fish worth$575. The haddock and red snapper together are worth $320. How many pounds of each fish did he catch?

From 1990 to 2000, the population of Cresco, Iowa, increased by 236. The population in 2000 was 3905. Use an equation to find the population in 1990.

During light activity, a $70 \mathrm{~kg}$ person may generate $200 \mathrm{~kcal} / \mathrm{h}$. Assuming that $20 \%$ of this goes into useful work and the other $80 \%$ is converted to heat, estimate the temperature rise of the body after $45 \mathrm{~min}$ if none of this heat is transferred to the environment.

Identify the pronouns in the following sentences.

Example:Most of those who took the photography class learned great deal about how they perceive their environment.

Most, those, who, they, their

Each of us can regain the ability to see freshly if we learn to make full use of our sense of sight.