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Tom [10]
3 years ago
15

What do scientists use to divide the geologic time scale? Major divisions in the fossil records Major divisions in the sedimenta

ry rock layers Evidence for catastrophic events in Earth's history Major changes in mineral deposits in the rock layers
Biology
1 answer:
IgorC [24]3 years ago
3 0
The correct option is B: MAJOR DIVISIONS IN THE SEDIMENTARY ROCK LAYERS.
Geologic time scale refers to a system of chronological dating which relates geological strata to time. Geologic time scale is used by scientists to describe the timing of the events that had occurred in the past, thus the scale divides the earth history into units of varying magnitude. There are four basic block of time, these are eons, eras, periods and epochs.
In determine geological time, rock records provide evidence of past geological events and life forms.
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Evidence of glacial action can be observed all over the park. Which of these are way
Maru [420]

Abrasion, plucking, deposition, and physical weathering are the glacial actions which can be observed all over the park.

Explanation:

When the huge ice masses slope down to fall over the land surface during a glacier, many glacial actions or processes take place which defines the landforms formed on the surface. These actions include abrasion, plucking, deposition, and physical weathering.  

Abrasion is an erosive process which scrapes the surface of ice rocks and other frozen rocky material beneath the ice and causes striations over the rocks.

Plucking also an erosive process plucks the frozen rocks beneath the ice surface.

Physical or freeze-thaw weathering causes water to enter the cracks in the rocks when the temperature increases. This water enters inside and freezes inside when the temperature goes down. This repeated melting and freezing of water destabilizes the rocks and will break the rocks.

These materials which are worn off are transported and deposition on the land surface when the glacier settle down.  

Longshore drifts occur along coastlines and brings materials along the coast when waves move at an angle with the coastline.

4 0
3 years ago
tu ¿qué opinas sobre la importancia de estudiar y conocer la relación que tiene la química con todos los aspectos de la vida cot
AfilCa [17]

Answer:

muchos de los cambios que observa en el mundo que lo rodea son causados por reacciones químicas. los ejemplos incluyen dejar cambiar de color, cocinar alimentos y limpiarse. conocer algo de química puede ayudarlo a tomar decisiones cotidianas que afectan su vida.

Explanation:

Espero que esto ayude a marcar el MÁS CEREBRAL !!!

3 0
3 years ago
Why do living things need food and water in the ability to get rid of waste?
bezimeni [28]
Living things need food and water to get rid of waste because its necessary for homeostasis. Living things need food and water for excretion of waste product from the body .<span />
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The process by which molecules diffuse across a membrane through protein channels is called?
rusak2 [61]
It is called facilitated diffusion which is a type of passive transport.
6 0
3 years ago
I need help plzzzz i need answer
Marina CMI [18]

Answer:

Step 4,1,3,2,5 in order!

Explanation:

6 0
3 years ago
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