<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.
I believe the lowest orange square would
Answer:
Due to over-pumping of water.
Explanation:
The aquifer around the Los Angeles are in California could be susceptible to an impact by a Tragedy of the Commons because the people used more water than the aquifer receives. The excess use of water from the aquifer through the well causes depletion of water which results in the shortage of water to fulfill the needs of existing population so it is wise to use water efficiently and used lower or equal water the aquifer receives in order to maintain level of aquifer.
Answer:
Regulatory sites e.g enhancers and silencers
Explanation:
Gene expression involves the synthesis of gene products usually proteins and RNA. However, a certain product might not be needed at all or in small quantity. Gene regulation mechanism is the process that makes this happen. Gene regulation is the mechanism that acts to induce or repress the expression of a gene.
Gene regulation involves controlling the rate and manner of gene expression which is achieved through a set of regulatory proteins called transcription factors. Transcription factors bind to specific regulatory nucleotide sequences and help to turn "on or off" specific genes in the DNA.
Transcription factors can either be ACTIVATORS or REPRESSORS depending on whether they boost or inhibit gene expression. The binding sites for these regulatory proteins called TRANSCRIPTION factors are the regulatory nucleotide sequences on the DNA called enhancers and silencers.
Answer:
Explanation:
The kind of air that moves downslope into a valley after sunset in mountain areas is cool air. This phenomenon is also known as mountain breeze, and it occurs when mountains create moisture through the emision of oxygen and carbon. After sunset, the air in the mountain slopes gets cold.
