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s2008m [1.1K]
3 years ago
13

Why does a parcel of air expand as it rises upward through the atmosphere?

Biology
1 answer:
vichka [17]3 years ago
4 0
the atmospheric pressure decreases upwards, hence the inter-molecular attraction between the air molecules decreases or to say that the inter-molecular space increases and the parcel of air expands.
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(b) Identify the dependent variable in the experiments. Identify a control group missing from the second experiment. Justify the
hammer [34]

Hello. You have not submitted the experiments to which this question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.

A dependent variable is one that is influenced by an element, in order to present a result, that is, it is a variable that does not establish itself, being dependent on another variable to establish itself. An example of a dependent variable can be seen in an experiment that seeks to determine the differences in growth rates of bean plants that were fertilized with different organic fertilizers. As you can see, this is an experiment where the different organic fertilizers influence differences in the growth rate of bean plants. Thus, the growth of these plants depends on the fertilizer, this growth being the variable dependent on the experiment.

A control group, in turn, is an element of the experiment that does not receive the element that is being tested in the same experiment. The control group is important, because it allows the researcher to see the results of a system where the tested element does not exist, thus being able to determine the real differences that the tested element is capable of causing. Using the same example presented in the paragraph above, we can see that the different organic fertilizers are the elements tested in the experiment. These fertilizers will be applied to the plants, however it is important that at least one of these plants does not receive any fertilizer, so that the difference between a system with fertilizer and a system without fertilizer can be evaluated. This plant that received no fertilizer is the control group.

4 0
2 years ago
Which part of the heart takes blood from the veins and pumps it into a ventricle?.
Savatey [412]
Answer:
The right atrium takes blood from the veins and pumps it into a ventricle

Please mark as brainliest
8 0
2 years ago
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An athlete has an enhanced genotype for carbohydrate utilization, however they feel sluggish after they eat carbohydrates, which
Viktor [21]

Answer:

Carbohydrates’ bad reputation ignores the benefits they can offer

sooo i would say it is B. i think....

6 0
3 years ago
Structures in plant leaves that open and close to maintain homeostasis are stomata
Delicious77 [7]
Structures in plant leaves that open and close to maintain homeostasis are called stomata. This is where gases would diffuse in and out of the leaf.
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3 years ago
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Which organisms use cellular replication called Mitosis?
wel
Isn't it none of the above? don't cells use mitosis?
6 0
3 years ago
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