True or False To find the specific age of rocks scientist cannot use radiometric dating?
False. Radiometric dating is a common method used by scientists to determine the age of rocks. By measuring the ratio of radioactive isotopes to stable isotopes in a rock sample, scientists can calculate how long ago the rock formed.
Some "cats" have gone extinct, such as the sabertooth. However, the cat as a whole has never been completely extinct.
It is defined as a place that oil migrates to and is held underground. Sandstone has plenty of room inside itself to trap oil, just like a sponge has room inside of itself to soak up spills in your kitchen. It is for this reason that sandstones are the most common reservoir rocks. Limestones and dolostones, some of which are the skeletal remains of ancient coral reefs, are other examples of reservoir rocks.
What are some valuable minerals that begin with G?
Here is a list of some valuable minerals that begin with G.
Gahnite Gahnospinel Garnet Geneva Ruby Geode German Silver Geuda Geyserite Geyser Opal Gilson Emerald Gilson Opal Girasol Glass Opal Gold Gooseberry Garnet Goshenite Granat This might not be all of them, but it's a good list.
Is a cast fossil one kind of carbonized fossil?
No, a cast fossil is not the same as a carbonized fossil. Cast fossils are formed when minerals fill in the cavity left by a previously existing organism, while carbonized fossils are formed when organic materials are compressed and heated, leaving a carbon residue of the original organism. Both types of fossils preserve the shape of the organism, but through different processes.
What is Divided into eons and eras and periods and epochs?
The geological time scale is divided into eons, eras, periods, and epochs. Each represents a different span of time in Earth's history, with eons being the largest divisions and epochs being the smallest. This hierarchical structure helps organize Earth's history into manageable units for study and understanding.
What is one way vegetation has change since the mesozoic?
Global climates were much warmer in the Mesozoic Era. Carbon dioxide was likely many times higher than today contributing to a "greenhouse" planet causing changes in the types of vegetation.
What is an apparent change in frequency of a sound source that moves relative to an observer?
The Doppler Effect. It's a change in frequency cause by the motion of the sound source, the motion of the listener, or both. As a source of sound approaches, observers hear a higher frequency. When the sound source moves away, observers hear a lower frequency. This effect was discovered by an Austrian scientist named Christian Doppler. Example: An ambulance siren. As the ambulance approaches a stationary observer, the frequency seems to increase. As the ambulance moves farther away, the loudness of the siren seems to decrease.
What kind of rock is most likely resulted from compacting and cementing particles together?
Sedimentary rock is most likely the result of compacting and cementing particles together. This process involves the accumulation and compression of sediment (such as sand, mud, and organic matter) over time, eventually forming solid rock through lithification. Examples of sedimentary rocks include sandstone, shale, and limestone.
Ichnology is the scientific study of traces and tracks left by living organisms, such as footprints, trails, burrows, and nests. It helps scientists understand the behavior and ecology of ancient and modern organisms based on their preserved traces in rocks or sediments.
Give the epochs into which US History is divided?
US history is typically divided into the following epochs: Pre-Columbian era, Colonial era, Revolutionary era, Early Republic era, Civil War era, Reconstruction era, Gilded Age, Progressive era, World War era, Cold War era, Civil Rights era, and Modern era. Each of these epochs represents significant periods of change and development in American history.
Energy:
Solar energy is collected by autotrophs. Energy transformations are never completely efficient as energy is lost as heat and waste and only around 5-20% of energy is passed on to the next trophic level.
Nutrients:
Organisms take in nutrients from their food and these nutrients occur as complex organic molecules in living things. After these organisms died, saprotrophs and decomposers break down these organic molecules into simpler substances. These substances are then recycled when they are absorbed by plants to recreate complex organic molecules.
Why are rhinos examples of living fossils?
Rhinos are considered living fossils because they have remained relatively unchanged in their basic physical characteristics for millions of years. Their unique features, such as their thick skin and distinctive horns, have persisted through evolution, making them resemble ancient rhino species. This evolutionary conservation has earned them the title of living fossils.
What is the location of impact for the meteorite proposed to have killed dinosaurs?
In the Gulf of Mexico - off the coast of the Yucatan
The Yucatan makes up the south eastern edge of the impact crater in noth America it hit 65 million years ago in the after the Jurassic period
What is something that is not preserved?
Fresh fruits and vegetables are not preserved as they are perishable items that deteriorate quickly without preservation methods like canning or freezing.
Paleantology is the study of bones, generally dinosaur bones.
Why do convection currents sink back to the core?
Convection currents sink back to the core in the Earth's mantle because as the material in the mantle cools, it becomes denser and sinks due to gravity. This sinking motion completes the cycle of convection, where warmer material rises and cooler material sinks, driving the movement of tectonic plates.
The half-life of the isotope used to date the age of Earth at 4.6 billion years would need to be roughly around 1.5 billion years. This would allow for the gradual decay of the isotope over time, leading to the age estimate of the Earth.
Where did all the Cambrian animals live?
During the Cambrian period, animals primarily lived in the ocean. They inhabited various marine environments such as shallow seas, reef systems, and coastal regions. Some also lived in deeper waters, but the majority of Cambrian animals were marine organisms.
It is so because, the oldest fossils are obtained from the life forms which used to exist at that time in the oldest ages.
At that time there was no so much changes in the world, the life forms being simpler. As the age of the earth advanced hence the forms of life also adapted or tried to adapt to the changes of the surrounding.
The climate changed and so did the life forms. It was determined that in the older times, 1st life forms came in the water bodies and then from there the land forms developed. So as we see the later life forms are more complicated, thus the oldest fossils are more simpler compared to their most recent counterparts.
The longest era lasting about 4 billion years was what era?
The Precambrian Super-Eon is the informal name for the time on earth before the Cambrian Period. It lasted from 4,576 millions years ago until 542 million years ago, about 4.034 billion years.
No geological era lasted as long. The longest era was the Paleoproterozic Era(2,500 - 1,600Ma) which lasted 900 million years.
Is a trilobite part of the Devonian period?
Yes, trilobites were most abundant and diverse during the Devonian period, which was from about 419 to 359 million years ago. They were a group of marine arthropods that existed for over 270 million years before going extinct around the end of the Permian period.
What years did the paleozoic era start and end?
The Paleozoic Era started around 541 million years ago and ended about 252 million years ago, spanning a duration of approximately 289 million years.