What are three things that you do that affects the composition of the atmosphere?

drama, as other narrations, use to have an introduction, a conflictive moment and finally an end. we can find tragedy, comedy, and epic genres in dramatic compositions These three examples are analysed by Aristotle in his book: the poetic (IV Century B.C), where he reflex about the aesthetic features of each kind of composition. it could be harder for an actual reader (or spectator) to understand the terms, actions and beliefs of a really old plays.  we talk about how does the era affect our ability as spectators to enjoy or understand a play, we have to consider the fact that all the plays that have been made until now had some historical, social and ideological signs that we can find if we analyze them carefully.

Explanation:

drama, as other narrations, use to have an introduction, a conflictive moment and finally an end. we can find tragedy, comedy, and epic genres in dramatic compositions These three examples are analysed by Aristotle in his book: the poetic (IV Century B.C), where he reflex about the aesthetic features of each kind of composition. it could be harder for an actual reader (or spectator) to understand the terms, actions and beliefs of a really old plays.  we talk about how does the era affect our ability as spectators to enjoy or understand a play, we have to consider the fact that all the plays that have been made until now had some historical, social and ideological signs that we can find if we analyze them carefully.

Explanation:

The correct answer is option A which is Sarah is correct because genetic diversity occurs over a long period of time.

The correct answer is option B which is the species will adapt to the changes.

The correct answer is option D which is, "The spines of a cactus protect it from animals".

The correct answer is option B which is, "Marie's plant will lean toward the sun so that it can get the most sunlight".

The correct answer is option B which is, "The dodo bird could not adapt quickly to the challenges of the environment".

Remaining questions are in attached document.

1) Answer is: A) Is boiling point affected by the strength of particle attraction?

Intermolecular forces are the forces between molecules or particles.  

For example, because of hydrogen bonds, water has higher boiling temperatures than hydrogen sulfide (H₂S).

In molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.  

Hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (H), covalently bound to a highly electronegative atom such as flourine (F), oxygen (O) and nitrogen (N) atoms.  

2) Answer is: A) it is a solid because strong attractive forces prevent particles from moving.

In solid, molecules are closely packed, stiff and do not changes of shape or volume. Solid object (for example wood) does not take on the shape of its container.

Liquids (for example water) have definite volume, but no fixed shape.

Gases (for example nitrogen and neeon) not have definite volume and fixed shape, it depends on its container.

3) Answer is: B) it undergoes phase change.

A physical change occurs when a substance changes phase.

For example, evaporization is phase change process in which the water changes from a liquid to a gas (water vapor).

Condensation is phase change process in which the water changes from a gas to a liquid.

If the arrangement of particles is changed, that is chemical change or chemical reaction (new substance is formed).

4) Answer is: C) Airplane and human body.

Human body converts food (chemical energy) in, for example, driving bicycle (mechanical energy).

Balanced chemical reaction for cellular respiration (convert chemical energy of glucose):  

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy .

Airplane use combustion of gasoline (chemical energy) for moving turbines.

Balanced chemical reaction of combustion of gasoline (octane):

2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O.

5) Answer is:

a) Melting is a physical change (process), the same substance is present before and after the change, so chemical bonds and melting point of the substance are not changed.

Substance changes phase from solid state to liquid.

b) Combustion (substance set on fire) is chemical change(chemical reaction) with oxygen, so chemical bonds and melting point of the substance are changed.

6) Answer is:

The two main variables in an experiment are the independent and dependent variable.

Dependent variable is the variable being tested and measured in a scientific experiment.

Dependent variables depend on the values of controlled variables.

The dependent variables represent the output or outcome whose variation is being studied.

The dependent variables is chemical change and controlled variable is temperature.

The correct answer is option A which is Sarah is correct because genetic diversity occurs over a long period of time.

The correct answer is option B which is the species will adapt to the changes.

The correct answer is option D which is, "The spines of a cactus protect it from animals".

The correct answer is option B which is, "Marie's plant will lean toward the sun so that it can get the most sunlight".

The correct answer is option B which is, "The dodo bird could not adapt quickly to the challenges of the environment".

Remaining questions are in attached document.

1) Answer is: A) Is boiling point affected by the strength of particle attraction?

Intermolecular forces are the forces between molecules or particles.  

For example, because of hydrogen bonds, water has higher boiling temperatures than hydrogen sulfide (H₂S).

In molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.  

Hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (H), covalently bound to a highly electronegative atom such as flourine (F), oxygen (O) and nitrogen (N) atoms.  

2) Answer is: A) it is a solid because strong attractive forces prevent particles from moving.

In solid, molecules are closely packed, stiff and do not changes of shape or volume. Solid object (for example wood) does not take on the shape of its container.

Liquids (for example water) have definite volume, but no fixed shape.

Gases (for example nitrogen and neeon) not have definite volume and fixed shape, it depends on its container.

3) Answer is: B) it undergoes phase change.

A physical change occurs when a substance changes phase.

For example, evaporization is phase change process in which the water changes from a liquid to a gas (water vapor).

Condensation is phase change process in which the water changes from a gas to a liquid.

If the arrangement of particles is changed, that is chemical change or chemical reaction (new substance is formed).

4) Answer is: C) Airplane and human body.

Human body converts food (chemical energy) in, for example, driving bicycle (mechanical energy).

Balanced chemical reaction for cellular respiration (convert chemical energy of glucose):  

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy .

Airplane use combustion of gasoline (chemical energy) for moving turbines.

Balanced chemical reaction of combustion of gasoline (octane):

2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O.

5) Answer is:

a) Melting is a physical change (process), the same substance is present before and after the change, so chemical bonds and melting point of the substance are not changed.

Substance changes phase from solid state to liquid.

b) Combustion (substance set on fire) is chemical change(chemical reaction) with oxygen, so chemical bonds and melting point of the substance are changed.

6) Answer is:

The two main variables in an experiment are the independent and dependent variable.

Dependent variable is the variable being tested and measured in a scientific experiment.

Dependent variables depend on the values of controlled variables.

The dependent variables represent the output or outcome whose variation is being studied.

The dependent variables is chemical change and controlled variable is temperature.