Birth and Mortality Rate, according to my knowledge they are important to help a population grow. They measure Birth to see how many are born and the mortality rate to see how many die.
I believe the answer is D. The NASA mission which sent a probe to collide with a comet's nucleus is the Deep Impact. It is the first mission sent in order to see the interior of a comet. The comet that was aimed was called the Comet Tempel 1.
<span>Folded and volcanic mountains</span>
Explanation:
Geography is the study of places and the relationships between people and their environments. Geographers explore both the physical properties of Earth's surface and the human societies spread across it.
History is the study of the past. Events occurring before the invention of writing systems are considered prehistory. "History" is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events.
Answer:
Natural ventilation takes place when the natural movement of air transfuses air. Natural movement of air keeps the buildings or the surrounding afresh. Typically windows, holes in the roof, and doors.
Explanation:
Natural movement of air without the help of mechanical tools to and from a place of higher concentration to a lower concentration or vice versa. Natural ventilation usually takes through windows and doors. When windows open they create a window driven ventilation.
By opening and closing windows we can manage the air flow.