Answer:
If our upright bones were not strong and sturdy then we will be very weak to do work and to do small work also our body didn't support us and we will be always afraid of our body
The correct option is this: A STRONG WIND BLOW ACROSS A MIDWESTERN PRAIRIE.
A strong wind is an example of a natural force. The prairie refers to a land fill with grasses and that is a natural factor also. Thus, a strong wind that is blowing across a prairie is generating a natural form of energy. The energy flow in the other options given are examples of man made devices.
Answer:
acidic
Explanation:
anything below a 7 is acidic
anything above a 7 is basic
and 7 is neutral
