Explanation:
waterfalls are temporary features of rivers because stream erosion is greatest at waterfalls and rapids. The water that falls at the base of the waterfall erodes rock there, leaving the rock at the tops of the waterfalls to overhang. Overall, undermining causes waterfalls to recede farther upstream.
Answer:
C. 2π cm
Explanation:
Measure of the length of arc(QR) = θ/360 × 2πr
Where,
θ = 60°
r = 6 cm
Plug in the values
Measure of the length of arc(QR) = 60/360 × 2 × π × 6
= 1/6 × 12 × π
= 2 × π
= 2π cm
He believed that they were originally one giant supercontinent. He had the theory of pangea, which was that all the continents pieced together like a puzzle.
<span>Good Morning!
In general, a storm has three stages. The first is development, the second is the mature stage and the third is the dissipative stage. The most striking difference in the stages is the change in currents. The beginning of the storm occurs with an ascending current, which causes the cloud to grow vertically. Then, with the precipitation, downward currents begin, through the friction caused by the rain. During this period the two currents, ascending and descending, reach their peak, gradually dispersing in the final phase.
Hugs!</span>