How do fossil fuels play a role in the carbon cycle?(1 point)
Responses
Fossil fuels require a lot of carbon to burn, which takes carbon out of the atmosphere.
Fossil fuels require a lot of carbon to burn, which takes carbon out of the atmosphere.
Fossil fuels require a lot of carbon to burn, which releases carbon into the atmosphere.
Fossil fuels require a lot of carbon to burn, which releases carbon into the atmosphere.
Fossil fuels are rich in carbon, and burning them releases carbon into the atmosphere.
Fossil fuels are rich in carbon, and burning them releases carbon into the atmosphere.
Fossil fuels are rich in carbon, and burning them returns carbon to the soil.
15 answers
Fossil fuels require a lot of carbon to burn, which releases carbon into the atmosphere.
How is the majority of carbon transferred from plants and animals to the soil? (1 point)
Responses
The decay of dead organisms releases some carbon atoms from their bodies into the soil.
The decay of dead organisms releases some carbon atoms from their bodies into the soil.
The decay of dead organisms releases carbon dioxide from their bodies into the soil.
The decay of dead organisms releases carbon dioxide from their bodies into the soil.
Carbon dioxide from plant and animal respiration dissolves into the soil.
Carbon dioxide from plant and animal respiration dissolves into the soil.
Carbon atoms from plant and animal waste dissolve into the soil.
Responses
The decay of dead organisms releases some carbon atoms from their bodies into the soil.
The decay of dead organisms releases some carbon atoms from their bodies into the soil.
The decay of dead organisms releases carbon dioxide from their bodies into the soil.
The decay of dead organisms releases carbon dioxide from their bodies into the soil.
Carbon dioxide from plant and animal respiration dissolves into the soil.
Carbon dioxide from plant and animal respiration dissolves into the soil.
Carbon atoms from plant and animal waste dissolve into the soil.
The decay of dead organisms releases some carbon atoms from their bodies into the soil.
Is all of Earth’s carbon dioxide supply constantly being used by organisms?(1 point)
Responses
No, some is stored in Earth’s only carbon sink, the atmosphere.
No, some is stored in Earth’s only carbon sink, the atmosphere.
No, some is stored in Earth’s carbon sinks, such as the oceans.
No, some is stored in Earth’s carbon sinks, such as the oceans.
Yes, and it briefly passes through the atmosphere as it cycles between organisms.
Yes, and it briefly passes through the atmosphere as it cycles between organisms.
Yes, and it is used up as soon as it is formed.
Responses
No, some is stored in Earth’s only carbon sink, the atmosphere.
No, some is stored in Earth’s only carbon sink, the atmosphere.
No, some is stored in Earth’s carbon sinks, such as the oceans.
No, some is stored in Earth’s carbon sinks, such as the oceans.
Yes, and it briefly passes through the atmosphere as it cycles between organisms.
Yes, and it briefly passes through the atmosphere as it cycles between organisms.
Yes, and it is used up as soon as it is formed.
No, some is stored in Earth’s carbon sinks, such as the oceans.
Which of these is the largest living carbon sink?(1 point)
Responses
ocean
ocean
soil
soil
insects
insects
forests
Responses
ocean
ocean
soil
soil
insects
insects
forests
ocean
At the deli counter in the supermarket, Nigel paid $10 for 2 1/2 pounds of roast beef. The cost of deli meat is proportional to its weight. What is the equation for the graph of this proportional relationship?(1 point)
The equation for the graph of this proportional relationship is: y = kx, where y represents the cost of deli meat, x represents the weight of the deli meat, and k represents the constant of proportionality.
The amount of water is directly proportional to the number of cups of rice. The coordinate (12, 1) is on the graph of this proportional relationship. Identify another point on the graph.(1 point)
Responses
(1/4, 2)
(2, 6)
(2/3, 4)
(3/2, 3)
Responses
(1/4, 2)
(2, 6)
(2/3, 4)
(3/2, 3)
To find another point on the graph, we can use the concept of direct proportionality. Since the amount of water is directly proportional to the number of cups of rice, we can use the ratio of the two quantities to find another point.
Given the coordinate (12, 1) on the graph, we can use this information to set up a ratio:
12 cups of rice / 1 unit of water = x cups of rice / y units of water
To find another point, we need to find the value of x when y equals a whole number.
Let's try the option (2, 6):
2 cups of rice / 6 units of water = 12 cups of rice / 1 unit of water
This satisfies the proportionality, so the point (2, 6) is another point on the graph.
Given the coordinate (12, 1) on the graph, we can use this information to set up a ratio:
12 cups of rice / 1 unit of water = x cups of rice / y units of water
To find another point, we need to find the value of x when y equals a whole number.
Let's try the option (2, 6):
2 cups of rice / 6 units of water = 12 cups of rice / 1 unit of water
This satisfies the proportionality, so the point (2, 6) is another point on the graph.
Four friends ran a 5K to raise money for their school. The graph shows their rates as a ratio of distance measured in kilometers and time in minutes. Based on the points shown, name the person who ran 212 km in 45 minutes.
(1 point)
Responses
Bella
Bella
Paul
Paul
Greg
Greg
Ruby
Ruby
(1 point)
Responses
Bella
Bella
Paul
Paul
Greg
Greg
Ruby
Ruby
Based on the given information, Bella ran 212 km in 45 minutes.
Talia noticed a sale at her favorite store. The points on the graph show how many items she bought of each. T-shirts were selling for $5 each, long sleeve shirts were $10 each, jeans were discounted to $15 each, and sweaters were on sale for $25 each. Name the point corresponding to the number of pairs of jeans Talia purchased.
(1 point)
Responses
A
A
B
B
C
C
D
(1 point)
Responses
A
A
B
B
C
C
D
To determine the point corresponding to the number of pairs of jeans Talia purchased, we need to identify the point on the graph that aligns with the number of jeans purchased. Unfortunately, the graph you mentioned is not visible to me.
Please provide the information or points on the graph that indicate how many items of each type Talia bought (including the number of jeans purchased).
Please provide the information or points on the graph that indicate how many items of each type Talia bought (including the number of jeans purchased).