Question

1. which of the following is true about when mountains developed on earth?

a. all mountains on earth today were present when earth was formed.
b. mountains developed for a while after earth first formed, but no new mountains are developing today.
c. mountains have only occasionally developed since earth formed.
d. mountains have been developing continuously since earth formed, and mountains are still developing today.

Explanation:

• Option A: Earth's mountains are formed by geological processes like tectonic plate movements. Not all mountains were present at Earth's formation.
• Option B: Mountains are still forming today due to ongoing tectonic activities.
• Option C: Mountains form continuously due to tectonic forces, not just occasionally.
• Option D: Tectonic processes (e.g., plate collisions) have been active since Earth's formation and are still active. For example, the Himalayas are still rising due to the collision of the Indian and Eurasian plates.

Answer:

D. Mountains have been developing continuously since Earth formed, and mountains are still developing today.