6= Only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures.
0.3= Zeros used as placeholders are not significant. Zeros that come before non-zero integers are never significant. Example 5: The zeros in 098, 0.3, and 0.000000000389 are not significant because they are all in front of non-zero integers. c. If the zeros come after non-zero integers and are followed by a decimal point, the zeros are significant.
Half-life<span> <span>(abbreviated </span>t</span>1⁄2<span>) is the time required for a quantity to reduce to
half its initial value. The term is commonly used in </span>nuclear
physics<span> <span>to describe how quickly
unstable atoms undergo, or how long stable atoms survive, </span></span>radioactive
decay<span>. since it reduce to half after 4000 years, so the
half life is 4000 years</span>
Answer:
i have no clue
Explanation:
umm cause i have no clue sorry lol but good luck
Objects float on water because it has surface tension.
<span>a date expressed in specific units of scientific measurement such as days, years, centuries, or millennia.
For example-</span><span>Dendrochronology (used to date burials)</span>