Modern homes are more likely to have higher indoor pollution because D. <span>They are tightly sealed from the outside</span>
Answer:
True
Explanation:
Blood pressure refers to the pressure applied by the blood on the arteries when the flow through it. In reality, the pressure of the blood is the pressure applied by on the blood during the pumping of the blood.
When the ventricles of the heart contracts, the pressure of the heart are very high which can be measured around 120 mm of Hg and is known as systole pressure.
When the pressure on the blood level applied during the ventricular relaxation during which the ventricles get filled with the blood is represented as 80 mm of Hg. This relaxation phase pressure is represented as diastole blood pressure.
Thus, true is the correct answer.
Caverns are mostly formed in limestone.
<h2>Biodiversity hotpots</h2>
Explanation:
All of the given option can be the biodiversity hotspots EXCEPT:
Tundra biome.
Biodiversity is defined as the total number of species present within a biogeographic region.
A biodiversity hotspot is that geographic area where significant biodiversity exists.
A tropical biome, a mountain ecosystem and an island ecosystem can have a significant biodiversity depending on the climate and other environmental condition.
A tundra biome is totally covered with snow and have a very few areas of vegetation and could support only a few species So it cannot be a choice for Biodiversity hotspot.
Answer:
The correct option is B. A hypothesis
Explanation:
Scientific method can be described as a method following which all scientific researches are made. The scientific method begins with a question. To answer this question, a hypothesis is derived.
A hypothesis can be described as a statement based on which observations are made end experiments are done. A hypothesis is a tentative statement. As the student in the question writes a tentative statement in his/her journal, hence it is most likely to be a hypothesis.