Answer:
Allows farmers and producers to control the amount of water that is placed on the field which allows the crop to get the needed amount of water for growth and development.
Explanation:
Is this a question?
Or is this telling people who need this answered it.
Answer:
Your answer is 2.
Explanation:
To calculate the mechanical advantage of a pulley you simply have to count the number of rope sections that support whatever object you are lifting (not counting the rope that is attached to the effort). For example, in a one pulley system the MA is 1. In a two pulley system the MA is 2.
Answer:
Genetics is the study of how heritable traits are transmitted from parents to offspring. Humans have long observed that traits tend to be similar in families. It wasn't until the mid-nineteenth century that larger implications of genetic inheritance began to be studied scientifically.
Explanation:
