Answer:
Explanation:
The most primitive tool I used today was the hammer. The hammer is age long in the history of household tools. It is used to hit in nails into walls or woods.
The most advanced tool I have used today is the mobile phone. This is a tool of the 21st century which makes communication easier and faster.
Answer:
The correct answer is option B. pulmonary stenosis.
Explanation:
Hypertrophy of the right ventricle is also called right ventricular hypertrophy is a condition in which the heart muscles of the right ventricles are enlarged or thickened.
The hypertrophy of the right ventricle is a response to pulmonary stenosis. Pulmonary stenosis is the condition in which blood flow from the right ventricle to the pulmonary artery is obstructed due to the stenosis or narrowing at one or several points.
Thus, the correct answer is option B. pulmonary stenosis.
Answer:
Availability of minerals in the soil
Answer:
They travel through liquids.
Explanation:
P waves are a type of seismic waves and they travel through solid, liquid and gas. They are called P waves because they are faster than the S waves and other types of seismic waves.
The p waves being the fastest is why it was named primary (p waves) while the S waves are slower and are referred to as secondary (s waves). These waves don’t start as surface waves but later results in it.