Answer:
The best estimate for Earth's age is based on radiometric dating of fragments from the Canyon Diablo iron meteorite. From the fragments, scientists calculated the relative abundances of elements that formed as radioactive uranium decayed over billions of years.The U.S. Congress adopted the Clean Air Act in 1970 and created the U.S. Environmental Protection Agency. Effective January 1, 1996, leaded gasoline was banned by the Clean Air Act for use in new vehicles other than aircraft, racing cars, farm equipment, and marine engines.Explanation:
15. Which of the following statements is false? A) scientists study rock layers and fossils when developing the geological time scale. B) according to the law of superstition the youngest rock layers are at the bottom. C) The oldest known rocks on earth are approximately 4 million years old. D) earth is constantly changing.
Answer:
B
Explanation:
The law of superposition states that rock strata (layers) farthest from the ground surface are the oldest (formed first)
Hope this helps :)
The statement regarding the fossil and the rock layer that is false is that, according to the law of superposition, the youngest rock layers are at the bottom. In terms of the rock layer, option B is correct regarding the statement.
What are the fossils?The fossils are the preserved materials of the animals and plants, such as the skeleton, teeth, bones, imprints, and other parts stored in the different layers of the earth. These fossils are preserved in natural ways, not by humans, and they are helpful for the study of the different animals because some fossils give the idea of the connecting links, and they give the idea of the animals' living conditions in the early time.
Hence, the statement regarding the fossil and the rock layer that is false is that, according to the law of superposition, the youngest rock layers are at the bottom. In terms of the rock layer, option B is correct regarding the statement.
Learn more about the fossils here.
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Which statement about Earth's supply of water is incorrect?
a. Due to global warming, dry places have more intense drought.
b. Due to global warming, wet places are having more floods
c. Earth's freshwater is evenly distributed
d. Freshwater is recycled through the water cycle
Answer:
The answer is C: Earth's freshwater is evenly distributed
how does the gravitational force between two objects change if the distance between the objects increases?
Answer:
YES
Explanation:
As g ∝ 1/d² between two two components, further potential difference would result in lower gravitational pull. So the influence of gravitational pull among them also reduces as two things are isolated from the others.
Populations of organisms that exhibit a high degree of variation have a greater chance for survival than populations of
organisms that show little variation. This statement is
O always true.
O usually true
O rarely true.
never true.
Mark this and return
Save and Exit
Next
Submit
Answer is -Always TRUE
Answer:
B usually true. took the test
Oil is primarily used for...
A. Cooking/Home uses
B. Electricity
C. Transportation
D. Industrial uses
help me please please
Answer:
A
Explanation:
Which statement describes a connection between photosynthesis and cellular respiration?
Question 6 options:
Water is a product of photosynthesis and is a reactant for cellular respiration
Oxygen is a product of both photosynthesis and cellular respiration
Oxygen is a product of photosynthesis and is a reactant for cellular respiration
Water is a product of both photosynthesis and cellular respiration
Answer:
Well i know that is C a reactant. because in order for photosynthesis to take place the plant NEEDS water same with cellular respiration they are in both dier need for oxygen.
Explanation:
What structure prevented the red onion cell from swelling up and bursting when they were placed in water?
A. vacuole
B. cell wall
C. Nucleus
D. cell membrane
Answer:
I think its B
Explanation:
PLEASE HELP ME- In humans, tongue rolling is dominant over non-rolling. A man who can roll his tongue marries a woman who cannot. They have 8 children, of which 6 can roll
children?
А Rr
B rr
ОООО
с RR
D 6R
Which of the following technological advancements allows scientists to study
cells?
O A. Pencil
O B. Electricity
O C. Microscope
D. Eyeglasses
Answer: microscope
Explanation:
explain the characteristics specific to social insects
Answer:
By definition, eusocial insects must exhibit all 3 of these characteristics: overlapping generations. cooperative brood care. a sterile worker caste
Explanation:
In mitosis, the cellular DNA is DUPLICATED, in order to make a copy of itself. True or False, AND explain
PLEASE HELP IT'S DUE TODAY!!!!
Answer:
True becuase it makes two daughter cells with the same DNA so it must duplicate to creat a set for each
What is the definition of the word Transformation
Answer:
significa el resultado de un proceso de cambio de forma. Sucede cuando una cosa, hecho o idea es convertida en otra.
Explanation:
Which of the following is NOT a benefit of finding and dating fossils?
A. Through fossils we can learn about organisms that lived in an area long ago.
B. Through fossils we can see whether or not evolution has occurred.
C. Through fossils we can map changes in the environment in one area.
D. Through fossils we can determine the time it takes for all organisms to evolve.
La respuesta es la C
*PLEASE ANSWER!!, I DONT GET IT*
What is the most important reason for exploring the Earth’s oceans?
a.) to secure funding for research
b.) for financial gain
c.) to ensure the survival of our species
Answer:
b
Explanation:
because of oil and rare materials at the floor of the ocean
What group does an eraser belong to?
plasma
solid
liquid
gas
Answer:
Solid
Explanation:
A solid is a state of matter characterized by particles arranged such that their shape and volume are relatively stable. I liked to think of it like this: If you put it in a container, it will keep its shape and remain stable.
organisms that use sunlight directly
Total distance does not take into account the direction of the object, but displacement always includes direction.
True or False?
a
ll organisms contain DNA. DNA holds the genetic instructions for all of an organism’s structures and functions. Which of the following accurately describes how these genetic instructions impact an organism’s structures and functions?
Proteins from these genetic instructions impact an organism’s structures and functions.
What are the functions of proteins?Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
There are seven types of proteins: antibodies, contractile proteins, enzymes, hormonal proteins, structural proteins, storage proteins, and transport proteins.
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HELP ME I BEEN DOING THIS FOR AN HOUR I CANT DO ITTT ! biology 9grade
Answer: tay sachs is autosomal recessive so you need 2 tt for someone to have it
One of each parents is a carrier Tt and the dark ones are tt and then the center 2 parents are both Tt and the circle in the bottom left would be TT
square on the r in the middle row can be anything same as the white square progeny of the same
Explanation:
If the grasshopper mouse population decreases dramatically, describe what will most likely
happen to each of the other animal populations in the food web and why.
Answer:
If the pallied-winged grasshopper population decreases dramatically, ideally the food chain would get disrupt as grasshopper being primary consumer is a prey for secondary consumer, like frog for the nutrition. In this situation frog's source of nutrition would delimit and consequently, the food chain
Explanation:
The only way to make a whole population evolve is through ________ ________.
Answer:
The only way to make a whole population evolve is through natural selection.
From left to right what are the three components of the nucleotide shown in this model?
1. The term used for “living together” is...
A. ecology b. environmentarism C.Bymiosis
Answer:
You might mean Symbiosis
Explanation:
PLS HELP MEZ if your good at SCIENCE iLL MARK Brainliest
Answer:
NY and PA
Explanation:
Its pretty self explanetory
compare and contrast - photosynthesis and cellular respriation
Two Changes that happen to your gas exchange system when you exercise regularly
Answer:
Hi hope this helps:
During exercise there's an increase in physical activity and muscle cells respire more
The heart rate increases during exercise.
The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
It's the middle of the day and you haven't eaten lunch yet. Your stomach starts to rumble. Is this an example of an internal or external stimulus?
O external
O internal
The photo shows a cross between a plant with white flowers and a plant with red flowers. The offspring is a plant with flowers that have both colors
Which pattern of inheritance is shown?
A.Codominance
B.Multiple genes
C.Recessiveness
D.Incomplete dominance
Answer:
A.Codominance
Explanation:
The photo shows a cross between a plant with white flowers and a plant with red flowers. The offspring is a plant with flowers that have both colors
Which pattern of inheritance is shown
Answer:
A.Codominance
Explanation:
I’m working on a cell project that is focusing on the nucleus and I have to find a theme song for it. Any suggestions about songs that might relate to the function of a nucleus?
Answer:
https://youtu.be/tRo73dzVfuo
A good song that could serve as a theme song for your cell project is;
The Nucleus Song, sung by Megan and SarahThe song above can serve as a good background for your cell project. It can be gotten from the mainstream video blog under the name Craigdet.
This song is a good choice because its lyrics mention the various parts of the cell, like the ribosomes, endoplasmic reticulum, cytoplasm, etc., and their functions.
It also mentions and displays the nucleus and its role in the cell. The song is educative and entertaining. It will be a good fit for your project.
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The
era began and ended with mass extinctions.
A. Cenozoic
B. Precambrian
O C. Mesozoic
D. Paleozoic
Answer:
c.
Explanation:
because is an interval of geological time from about 252 to 66 million years ago.