Question

if parking a tractor on a grade, the tractor should be parked _____. parallel to the grade or slope at a 45 - degree angle to the grade or slope at a right angle to the grade or slope at a 25 - degree angle to the grade or slope

Explanation:

Parking a tractor at a right - angle to the grade or slope helps prevent it from rolling down the slope due to gravity and provides better stability.

Answer:

at a right angle to the grade or slope