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seropon [69]
3 years ago
5

You are exploring in a cave and call out to one of your friends. You hear your echo. Which interaction of sound (reflection, ref

raction or absorption) caused the echo and how did the sound waves move?
Biology
1 answer:
RideAnS [48]3 years ago
8 0
When sound waves hit a solid surface they either reflect, refract, or absorb.
Echo's are caused by the reflection of sound waves.
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The kidney is an organ that collects wastes and excess water from the blood and sends them to the bladder where they are stored
Viktor [21]

4) digestive and circulatory, because the bladder is part of the digestive system. The circulatory system carries blood around the body using blood vessels.

6 0
3 years ago
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
ad-work [718]

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

8 0
3 years ago
Read 2 more answers
The image below shows a convergent plate boundary.
JulsSmile [24]

Answer:

the answer is volcanoes

Explanation:

The oceanic crust collides with the continental crust to form a convergent boundary. At the convergent boundary, the denser oceanic crust sinks under the lighter continental crust. The rocks of the oceanic crust reach very high temperatures of about 12,000°C, which is enough to melt the rocks. These molten rocks travel upward through cracks and crevices in the continental crust. They then erupt on the surface as volcanoes. Therefore, the feature expected to form at point X as the result of converging plates would be volcanoes.

8 0
2 years ago
12. What kind of rocks are used to determine the age of Earth?
Fofino [41]

Answer:

Igneous rocks and Metamorphic rocks determine the age of the earth.

7 0
3 years ago
The first cervical vertebra (c1) known as the ____, a ring-like structure with a short anterior arch and long posterior arch.
kap26 [50]
It is called the atlas.
8 0
3 years ago
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