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Firlakuza [10]
3 years ago
13

If you do not understand a direction or part of a laboratory procedure, you should _.

Chemistry
2 answers:
alekssr [168]3 years ago
8 0

The correct answer is C, as if you do not understand something, it's always best to ask for help, especially when performing a sensitive procedure.

Minchanka [31]3 years ago
3 0

The answer to this is

<u><em>C.</em></u>

and please mark brainliest :)

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!!!!100 POINTS!!!!
Cerrena [4.2K]

The research of astronomy during the time period of 1970 - 1990 is given below:

<u>Date</u>                                                   <u>Event</u>

1. 15 June 1974               Black Brant VC sounding rocket from White Sands.

2. 14 May 1973              Launch of Skylab, the USA's first space station

3. 26 July 1971           Launch of Apollo 15

<h3>What is Astronomy?</h3>

This refers to the branch of science that deals with celestial bodies and their relation to each other.

Hence, from information about astronomy, between the time period 1970 - 1990 as it was on the 26th of December, 1974 that the Soviet space station Salyut-4 was launched.

The event I think had the greatest impact in astronomical history during this time period was the launch of Apollo 16.

Read more about astronomy here:

brainly.com/question/1141458

#SPJ1

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