<u>Answer:</u>
<em>Anytime observations need to be clarified. When an unusual condition need to be shown for later reference.</em>
<u>Explanation:</u>
Instead of just recording the data the is sometimes important to be sketched out as the data observed is needed to be clarified and also sometimes there is an unusual condition that occurs and hence, it is important to sketch it so that it can be used for later reference.
<em>Therefore, when we are aware of the situation we need not sketch the data.</em>
Answer:
Demographers study the growth and decline of human populations, and urban planners plan for the futures of cities (e.g. electricity, water, and transportation needs). Demographers and urban planners would benefit from working together to help solve difficult problems in society and to help plan for the future. A demographer would be very helpful to urban planners as they plan for the future of a city. For example, an urban planner would want to have an idea of the population growth in the city, or of the average growth rate in other cities, when planning for the city's future transportation, water, and electricity needs. Demographers and urban planners are important to each other! They help each other plan for the future of society
Explanation:
To figure out just where that earthquake happened, you need to look at
your seismogram and you need to know what at least two other
seismographs recorded for the same earthquake. You will also need a map
of the world, a ruler, a pencil, and a compass for drawing circles on
the map.
Answer:
Thus the conditions favourable for the formation of dew are (I) a good radiating surface, (2) a still atmosphere, (3) a clear sky, (4) thermal insulation of the radiating surface, (5) warm moist ground or some other provision to produce a supply of moisture in the surface layers of air.
Explanation: (:
Answer: Scientists know that the Colorado River carved Grand Canyon. ... The age of the river falls between the rocks determined to be older than the river and those determined to be younger. Through this method, scientists have estimated an age for the river, and thus the canyon through which it flows, of 5-6 million years.
Explanation:
