can someone help me with this one? i have no idea with it Part B - Changing Envi

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can someone help me with this one? i have no idea with it

Part B - Changing Environments

Today, geologists and climatologists analyze trends in climate from measurements of regional mean annual temperature. However, the technology or ability to measure temperature was not present during much of the world’s natural history and changes. Fortunately, different climates create different environments and those environments leave clues of their existence. As a result, geologists rely on landforms or deposits left by glaciers and sand dunes, for example, as indicators that past environments were cold or arid, respectively.

The features identified above provide evidence of past environments in the Cirque Peak area. These features require certain geologic and environmental conditions to form. In this part, consider these features and conditions, which are described below.

Climate change alters sea level and tectonics changes topography. These processes can lead to shifts in shoreline position or even make them disappear.

Rising or falling sea level can be initiated by global climate change or tectonic events like mountain building.

During cold periods, like ice ages, more of the world’s water is stored in continental glaciers (e.g., Greenland), causing sea level fall. As the planet warms and the ice melts, sea level then rises.

Tectonic processes create mountains and adjacent inland depressions (basins) that in turn collect water and sediments transported from the highlands. During the formation of the Canadian Rockies, a seaway formed between the Rockies and the Coast Ranges near the modern day shoreline of Canada. This waterway, called the Cretaceous Interior Seaway, existed ~145 to 66 million years ago and spanned from the present day Gulf of Mexico north through western Canada. Some of the sediment deposited at the base of this sea eroded from the Canadian Rockies.

Mountain topography is created by tectonic processes that deform and uplift rock. However, its form is highly dependent on the various processes that erode it. For example, hillslopes can erode by landslides, rivers, soil creep, or even glaciers; each process leaves its unique signature.

Select all that apply.

PART C is rank from oldest to yongest

Cretaceous Interior Seaway formed

glacier scoured hillslope

shale of the Arctomys Formation is formed

stromatolites formed

and how can i define which one is yongest which is oldest?

1.Rainwater once flowed from the Canadian Rockies into the Cretaceous Interior Seaway. 2.Stromatolites are the geologic evidence that indicates that this region was tectonically active. 3.There is no evidence of tectonic activity in the Gigapan image. 4.There is evidence that the location shown in the Gigapan image once was near a shoreline. 5.The mean annual temperature of the location shown in the Gigapan image was once much lower than it is today.

Explanation / Answer

Part B Changing Environments:

Answer:

1. Rainwater once flowed from the Canadian Rockies into the Cretaceous Interior Seaway.

2. Stromatolites are the geologic evidence that indicates that this region was tectonically active.

5.The mean annual temperature of the location shown in the Gigapan image was once much lower than it is today.

PART C (Rank from oldest to youngest)

Answer:

How can I define which one is the youngest, and which one is the oldest?

The events inside the Earth are the oldest ones. What we see at the lithosphere of the earth is the youngest ones.

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