The Himalayas in central Asia are the tallest mountains in the world. But fossils of seashells can be found high in these mountains, far from any ocean. How do you think they got there? a. At one point in Earth's history the mountains were under water
b. At one point in Earth's history there was a giant tsunami
c. At one point in Earth's history those organisms evolved to climb mountains
d. At one point in Earth's history the mountains formed from a volcanic explosion

a. At one point in Earth's history the mountains were under water.

Explanation:

An ocean is a body of salt water which covers approximately 70% of the Earth's surface. About 97% of the Earth's water is comprised of ocean and as such it is the most prominent and defined feature of the Earth. There are basically four (4) categories of an oceanic basin and these are;

1. The Pacific ocean.

2. The Artic ocean.

3. The Atlantic ocean.

4. The Indian ocean.

A fossil can be defined as the mineral impression or remains of living organisms such as plants and animals that are prehistoric in nature.

The Himalayas in central Asia are the tallest mountains in the world. But fossils of seashells can be found high in these mountains, far from any ocean. These fossils of seashells got there because it is assumed that at one point in Earth's history the mountains were under water.