Question

1. how would one determine population change?

a. determine the total number of births and immigrants in a population. subtract this value from
the total number of deaths and emigrants in the population.
b. determine the total number of births and immigrants in a population. subtract this value
from the total number of deaths and emigrants in a population.
c. determine the total number of births and emigrants in a population. subtract this value from
the total number of deaths and immigrants in a population.
d. determine the total number of deaths and immigrants in a population. subtract this value
from the total number of births and emigrants in a population.

1. plants release water into the atmosphere through a process called ____.

a. evaporation
b. transpiration
c. infiltration
d. precipitation

1. plants near the floor have large, flat leaves to capture small amounts of sunlight; receive the highest

amount of precipitation; highest biodiversity; found along the equator.
a. tropical rainforest
b. desert
c. tundra
d. grassland

1. sulfur and nitrogen compounds in the air can combine to form what type of pollution?

a. ozone
b. hay fever
c. smog
d. ammonia

Explanation:

Question 40

To determine population change, the formula is \( \text{Population Change} = (\text{Births} + \text{Immigrants}) - (\text{Deaths} + \text{Emigrants}) \). So we first find the total number of births and immigrants, then the total number of deaths and emigrants, and subtract the latter from the former. Option b says "Determine the total number of births and immigrants in a population. Subtract this value from the total number of deaths and emigrants in a population." Wait, no—wait, the correct operation is (births + immigrants) - (deaths + emigrants), which is equivalent to determining births + immigrants, determining deaths + emigrants, then subtracting deaths + emigrants from births + immigrants. Wait, let's re - examine the options:

• Option a: "Determine the total number of births and immigrants in a population. Subtract this value from the total number of deaths and emigrants in a population." This would be (deaths + emigrants) - (births + immigrants), which is the negative of population change.
• Option b: "Determine the total number of deaths and emigrants in a population. Subtract this value from the total number of births and immigrants in a population." This is (births + immigrants) - (deaths + emigrants), which is the correct formula for population change.
• Option c: "Determine the total number of births and emigrants in a population. Subtract this value from the total number of deaths and immigrants in a population." This is an incorrect combination of factors.
• Option d: "Determine the total number of deaths and immigrants in a population. Subtract this value from the total number of births and emigrants in a population." This is also an incorrect combination of factors.

Wait, maybe I misread option b. Let's check again. The population change is calculated as (Births + Immigration) - (Deaths + Emigration). So we need to find (Births + Immigration) and (Deaths + Emigration), then subtract (Deaths + Emigration) from (Births + Immigration). So the correct option should be the one that says to find births + immigrants, find deaths + emigrants, and subtract deaths + emigrants from births + immigrants. Let's check the options again:

Option b: "Determine the total number of deaths and emigrants in a population. Subtract this value from the total number of births and immigrants in a population." Yes, that's (births + immigrants) - (deaths + emigrants), which is correct.

Plants release water into the atmosphere through the process of transpiration. Evaporation is the process of water turning into vapor from non - living sources like lakes. Infiltration is the process of water entering the soil. Precipitation is water falling from the atmosphere to the earth. So the correct process for plants releasing water is transpiration.

Tropical rainforests are found near the equator, have large, flat leaves to capture sunlight (even in the lower levels of the forest), receive high amounts of precipitation, and have the highest biodiversity among the given options. Deserts have low precipitation and low biodiversity. Tundra has low temperatures, low precipitation, and low biodiversity. Grasslands have less biodiversity than tropical rainforests and different precipitation and leaf characteristics.

Answer:

b. Determine the total number of deaths and emigrants in a population. Subtract this value from the total number of births and immigrants in a population.

Question 41