Answer:
<em>The 1920s was a decade of increasing conveniences for the middle class. New products made household chores easier and led to more leisure time. Products previously too expensive became affordable. New forms of financing allowed every family to spend beyond their current means.</em>
Explanation:
<h3>I hope this helps!</h3>
Answer:
To avoid Hyper-oxygenation
Explanation:
Crucian carp have the ability to increase gill surface to maximize oxygen intake, or reduce overall area when under specif circumstances. If the fish does not need so much oxygen it will cover the protruding lamellae to reduce oxygen intake and avoid Hyper-oxygenation.
The answer is written by experts in their field of study.
