subject

Chemistry, 20.03.2020 02:19 orgaprince

How can scientists know what happened millions of years ago if no one was there to see it?

ansver

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 13:10, puchie1225

Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.

Answers: 2

Chemistry, 21.06.2019 19:30, meganwintergirl

Amount of liquid measured in l or lm

Answers: 1

Chemistry, 22.06.2019 01:30, Jasten

There are main groups in the modern periodic table of elements

Answers: 1

Chemistry, 22.06.2019 19:30, aapowell1

What is the common name for the compound shown here? enter the common name of the compound shown?

Answers: 2

You know the right answer?

How can scientists know what happened millions of years ago if no one was there to see it?...

Questions in other subjects:

Konu

Mathematics, 17.09.2019 05:30

Riley used this graph to compare two movie-rental plans. choose the three statements that are true about the graph.

Konu

Mathematics, 17.09.2019 05:30

Acompany makes two different sized ice cream cones. the smaller cones 3.5 inches tall and have a diameter of 3 inches. the larger cones are 5.1 inches and have a diameter of 4.5 in...

Konu

Physics, 17.09.2019 05:30

An atom gains an additional electron what is the overall charge of the ion that is formed...

Konu

Mathematics, 17.09.2019 05:30

Are the equations 3x=-9and 4x=-12 equivalent? exlpain need i don’t understand...

Konu

History, 17.09.2019 05:30

Evaluate the extent to which the european contact with native americans altered and continued worldviews of native americans and europeans from 1491 to 1607...

Konu

Chemistry, 17.09.2019 05:30

Need ! a dry beaker has a mass of 55.0 g. when 50.0 ml of water is added to the beaker, the mass of the water and the beaker is 105.0 g. what is the density of the water?...

Konu

Chemistry, 17.09.2019 05:40

When a gas changes into a liquid, this is known as...

Konu

Mathematics, 17.09.2019 05:40

Can you tell me no 4 questions is carrect?...

Konu

English, 17.09.2019 05:40

Exit a well-structured speech will often include anecdotes. the use of anecdotes in the message will actually the reader believe the speaker is and a. creative; innovati...

Konu

Mathematics, 17.09.2019 05:40

Anumber is chosen at random from the integers between 11 and 99, inclusive. what is the probability that the number contains the digit 2?...

More questions: Chemistry Another questions