<span>In the 20th century, the scientist believed
that the floor of the ocean floor is flat. But later on discovered that their
theory is wrong. The ocean floor is not flat and featureless. One technology
helped the scientist to study in advance and in details the real feature of the
ocean floor. They used sound waves to know the distance of the water from floor
level to the top. They also discovered that ranges of mountains lies under the
ocean. Sonar was one of the technologies they used to study the sound waves
emitted by the ocean.</span>
Answer:
The fee for e-Visa is paid by an electronic medium like a credit card or internet banking. When the application is approved, the visa is sent to the email and can be downloaded. One of the major benefits of e-Visa is that you don't have to wait at the airport after arrival in the country.
Explanation:
thank me later
Answer:
The climate in that area is different today than when tropical plants and animals lived there
Explanation:
The most likely reason for the absence of those tropical animals in North Texas would be the climate.
Climatic conditions have varied through geologic history of our blue planets. When these conditions changes, organisms have to adapt and on the long run, the environment won't be able to sustain them. They become phased out.
It is possible for rock records in a place to bear different fossil records records that are not similar compared to the life we have in such areas today.
The Sahara desert for example has huge fossils of fishes in its rocks. Today, the area is a hot desert and contains very low biodiversity. Sciencist have proposed that the region was previously a lush green tropical forest and the ocean covered some parts too. Today, the Sahara's climate has changed.
Answer:
B tectonic plates
Explanation:
I choose this because when the plates move that is how mountains, valleys and volcanoes are made. It is because of the shift.
Answer:
the Andes is the primary mountain range in South America
