As bananas ripen they release a gas called ethylene. This gas causes the bananas to ripen faster. As the bananas ripen they release even more ethylene, causing other bananas to begin ripening.

Question

Based on this information, identify the correct statement(s) below.

A) Bananas ripening is an action.
B) Bananas ripening causes the cycle to stop.
C) Bananas releasing ethylene causes more ripening.
D) Bananas releasing ethylene is an effect.
E) Bananas releasing ethylene causes the cycle to stop.

Answer 1

Based on the information provided, the correct statements are:

A) Bananas ripening is an action. - True. The process of bananas changing from unripe to ripe is an action.

C) Bananas releasing ethylene causes more ripening. - True. The release of ethylene gas accelerates the ripening process in bananas.

D) Bananas releasing ethylene is an effect. - True. The release of ethylene is an effect of the ripening process, as it is one of the byproducts that occurs as bananas ripen.

The other statements, B and E, are incorrect:

B) Bananas ripening causes the cycle to stop. - False. Bananas ripening does not stop the cycle; instead, it perpetuates it by causing other bananas to ripen.

E) Bananas releasing ethylene causes the cycle to stop. - False. The release of ethylene gas actually perpetuates the cycle of ripening, rather than stopping it.

So, the correct statements are A, C, and D.

Answer 2

As bananas ripen they release a gas called ethylene. This gas causes the bananas to ripen faster. As the bananas ripen they release more ethylene, causing them to ripen faster. What is this is an example of?

A) positive feedback because the cycle continues
B) positive feedback because the cycle stops
C) negative feedback because the cycle stops
D) negative feedback because the cycle continues

Answer 3

The situation described is an example of:

A) positive feedback because the cycle continues.

In this context, as bananas ripen and release ethylene, it causes them to ripen even faster, leading to more ethylene being released and thus perpetuating the cycle. This is characteristic of positive feedback, where the output enhances or accelerates the process, leading to an ongoing cycle.

Answer 4

A person feels full and cannot eat any more after having a large meal.
Based on this information, identify the true statement(s) below.

A) Eating a meal is an action.
B) Eating a meal causes the cycle continue.
C) Feeling full after eating is an effect.
D) Feeling full causes the cycle to stop.
E) Feeling hungry causes the cycle to stop.

A)

Answer 5

Based on the information provided, the true statements are:

A) Eating a meal is an action. - True. Eating is an action undertaken by the person.

C) Feeling full after eating is an effect. - True. The sensation of feeling full is a result of having eaten a large meal.

D) Feeling full causes the cycle to stop. - True. When a person feels full, it typically leads to a cessation of further eating, which stops the cycle of consumption.

The other statements are incorrect:

B) Eating a meal causes the cycle to continue. - False. Eating a meal leads to feeling full, which generally stops further eating, thus not continuing the cycle.

E) Feeling hungry causes the cycle to stop. - False. Feeling hungry typically prompts someone to eat, which continues the cycle rather than stopping it.

So, the true statements are A, C, and D.

Answer 6

Sea ice, an important hunting ground for polar bears, has an albedo of 0.7.
Identify the statement that best describes how a surface with an albedo of 0.7 reflects and absorbs light.

A) 0.7% of the light is reflected by the surface, and 0.3% is absorbed.
B) 0.7% of the light is absorbed by the surface, and 0.3% is reflected.
C) 70% of the light is reflected by the surface, and 30% is absorbed.
D) 70% of the light is absorbed by the surface, and 30% is reflected.

Answer 7

The correct statement regarding a surface with an albedo of 0.7 is:

C) 70% of the light is reflected by the surface, and 30% is absorbed.

An albedo of 0.7 means that 70% of the incoming light is reflected away from the surface, while the remaining 30% is absorbed.

Answer 8

Complete the blanks in this paragraph.

Feedback cycles play an important role in regulating the Earth's climate. Ice caps located at the Earth's poles have albedo index scores that are _____ than other types of terrain like grass or ocean. This means that the snow and ice _____ more radiation back into space than other types of terrain. However, as the Earth's global average temperatures increases, the amount of snow and ice in the polar regions decreases. As a result, more _____ is absorbed, causing temperatures to increase even more. This is an example of a _____ feedback cycle because the effect of the action causes the cycle to _____.

Choose from the following words:

lower

stop

heat

higher

solar radiation

positive

absorb

continue

reflect

negative

Answer 9

Here is the completed paragraph using the provided options:

Feedback cycles play an important role in regulating the Earth's climate. Ice caps located at the Earth's poles have albedo index scores that are higher than other types of terrain like grass or ocean. This means that the snow and ice reflect more radiation back into space than other types of terrain. However, as the Earth's global average temperatures increases, the amount of snow and ice in the polar regions decreases. As a result, more solar radiation is absorbed, causing temperatures to increase even more. This is an example of a positive feedback cycle because the effect of the action causes the cycle to continue.