The largest mass extinction event in the history of the Earth occurred at the end of the _______ period.

Answers

Answer 1

Answer: The largest mass extinction event in the history of the Earth occurred at the end of the Paleozoic Era. This happened more than 250 million years ago. During this mass extinction, the entire dinosaur population was wiped out. There was approximately 96% of all the life forms on Earth destroyed during this time period.

Related Questions

A train whistle is at a higher pitch (note) as it approaches you and then drops to a lower pitch as it moves away. This effect is called?
Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed intoA) electrical energy. B) mechanical motion. C) heat and light energy. D) electrical and heat energy.
A baseball player runs 27.4 meters from thebatter’s box to first base, overruns first base by 3.0 meters, and then returns to first base. Compared to the total distance traveled by the player, the magnitude of the player’s total displacement from the batter’s box is (1) 3.0 m shorter (3) 3.0 m longer (2) 6.0 m shorter (4) 6.0 m longer
Which of these follows from Newton's laws about the energy of a moving object? A)The total mechanical energy of an object is always constant. B)The kinetic energy of an object remains the same if friction is absent. C)The mechanical energy remains the same if there are only conservative forces acting. D)The total of all forms of energy is always constant.
I need help i'm confused

Two waves with amplitudes of 75 units and 74 units arrive at a point in a medium simultaneously. If the two waves are out of phase with each other, what is the resultant amplitude of the wave?a. 74 units

b. 1 unit

c. 75 units

d. m149 units

Answers

Answer;

1 unit

Explanation;

Interference of a wave is the property a wave that occurs when two waves travelling in the same medium meet at a point or superpose at a point in the medium.

Interference may be constructive or destructive. Constructive occurs when two identical waves travelling in the same medium in phase meet at a point. The resulting wave has twice the amplitude of the individual waves.

Destructive interference occurs when two waves travelling in the same medium meet and out of phase. The resulting amplitude will be zero if the initial waves are identical, or the difference between the amplitude of the original waves if they are not identical.

Therefore; If the two waves one with an amplitude 75 units and the other 74 units, are out of phase with each other, the resultant amplitude of the resulting wave will be 1 unit, the difference between the amplitude of the original waves.

If the two waves have the SAME FREQUENCY and are exactly
out of phase (180° apart), then the resultant wave will have the
same frequency and an amplitude of 1 unit.

If the two waves do not have the SAME FREQUENCY, then their
relative phase is meaningless.

Every charged particle produces ?

Answers

Every charged particle produces a magnetic field.

What was the rule of the sticks on each atom model

Answers

Answer:

That they must die

Explanation:

Stick = Die

Answer: That they must die

Excellent

What is the fundamental frequency of a particular medium?. a.the lowest frequency at which a standing wave is possible. b. the highest frequency at which s standing wave is possible

Answers

The correct answer is definitely A) the lowest frequency at which a standing wave is possible. I choose this option because standing can occur only at a fundamental frequency and at odd harmonics --> the lowest frequence.

Four wire AB,BC,CD and DA each resistance 4 ohm and a fifth wire BD of resistance 8 ohm are joined to form a rectangle to which BD is a diagonal.The effective resistance between the points A and B is?

Answers

Since it's so late, and it's way past my bedtime, and I'm tired and hungry,
and I still have real work to do, and I don't think you're really a legitimate
asker of Brainly questions anyway, I'm going to do something that's against
my principles and I almost never do. I'm going to violate my own personal
Prime Directive, and give you the answer without any explanation of where
it comes from.

Ready ?

Here goes:

The effective resistance between points 'A' and 'B' is (2 and 2/3) Ω .

List the characteristics properties of all waves. at what speed do electromagnetic waves travel in a vacuum

Answers

Electromagnetic waves travel at $300,000,000 metres per second$ in vacuum

The fundamental properties that can be attributed to waves are;

reflection
refraction
diffraction
interference.

Other properties are ;

wavelength
frequency
amplitude.

A waves can be regarded as one that disturb the transfers energy.

what all this electromagnetic waves has in common is their ability of them to travel in the vacuum with the same speed.

Their speed in the vacuum is 300,000,000 metres per second which is the speed of light.

Electromagnetic radiation can be regarded as radiation that has waves of the electromagnetic field, which propagate through the space, and it moves along with electromagnetic radiant energy.

Electromagnetic waves that are part of electromagnetic spectrum are:

radio waves
microwaves
infrared light
ultraviolet
X-rays,
gamma rays.

Wavelength can be regarded as distance that exist between identical points i.e the adjacent crests of the adjacent cycles in that waveform

Frequency can be explained as the rate of vibration of the wave electromagnetic field per seconds.

The amplitude of wave can be regarded as distance from the centre line to the bottom of a trough, or to the top of a crest.

Therefore, electromagnetic waves travel at 300,000,000 metres per second in vacuum.

brainly.com/question/3101711?referrer=searchResults

All electromagnetic waves travel at

299,792,458 meters per second

in vacuum.

Other Questions

Which of the following is not a dwarf planet?A. Hydra B. Haumea C. Eris D. Pluto

The radius of the planent venus is nearly the same as that of the earth,but its mass is only eighty percent that of the earth. If an object weighs w on the earth,what does it wiegh on venus

The velocity of a wave isa. its direction and speed. b. the distance between two wave crests. c. the time required for a wave to move one wavelength. d. half the vertical distance between a crest and a trough divided by the frequency.

Which of the following is the best example of a proper hypothesis? Orange popsicles taste sweeter than grape popsicles. If two objects are dropped at the same height, the heavier object will hit the ground first. Children who wear backpacks do better academically. I think there is no effect on hearing if you listen to loud music only three hours a day.