The opposing surfaces of bones that are connected via synovial joints are covered with a thin layer of articular cartilage
I would say false, because to find the ABSOLUTE age of a rock, scientists have to preform radioactive dating.
I hope this helped! :-)
The first is plant
Second is animal
Third is fungi
<u>Answer</u>: Option b) 2
<u>Explanation</u>:
- Significant figures are the digits which play a role in defining a measurement that is they carry some meaning.
- There are <em>three</em> essential rules to find out the significant figures in a given number:
- <u>Rule 1</u>: Non-zero digits such are always significant.
- <u>Rule 2</u>: The zeroes after a non-zero number in decimal are also significant. An example is if the number is 0.0500 then the zeroes after 5 are considered significant, however, the zeroes before 5 are not significant.
- <u>Rule 3:</u> The zeroes placed between any two significant digits are also considered as significant e.g in 202 the zero is significant.
- Therefore, in the number 0.020 km, there are <em>two</em> significant digits, one is 2 and the other is the last zero placed after 2.