I don't know what that means
Answer:
Let there are 3 Containers.
Weight of Containers is w1,w2,w3 respectively.
Sand is filled in the containers one by one.
After filling the sand in three containers,
the weight of Containers become W1, W2, W3.
The difference between the weight of container after filling the sand and the actual weight of empty container, will give the weight of sand in that. Container
The difference between the weights (W1-w1) will give us the weight of sand in first container.
The difference between the weights (W2-w2) will give us the weight of sand in Second container.
The difference between the weights (W3-w3) will give us the weight of sand in Third container.
Explanation:
Answer:
While I was smoking my cigar, a fire engine came roaring around the corner.
Explanation:
In the third option it's showing the time when the fire engine came and that too in correct form of words.
Answer:
Decreased shade variation of red color because no trait form is now advantageous.
Explanation:
Earlier females choose mates based on vibrant colors of male feathers, therefore, there was a selection pressure on males to evolve the trait so that they get their mate and pass their genes to the next generation.
So when females switched to other criteria other than feather color to get their mate then the importance of color trait gets reduced and the trait becomes non-advantageous for male cardinal.
Therefore due to this change, there is no longer necessity remained to evolve the color trait so the shade variation will decrease over time as now no trait form remained advantageous for this bird species.