# Breathing rate:it decreases breathing rate.
# The effects of tobacco smoke on the respiratory system include:
irritation of the trachea (windpipe) and larynx (voice box)
reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages
impairment of the lungs’ clearance system, leading to the build-up of poisonous substances, which results in lung irritation and damage
increased risk of lung infection and symptoms such as coughing and wheezing
permanent damage to the air sacs of the lungs.
.#Heart rate.
See the image for decrease in heart rate..
2.Athelets and musician has high capacity to hold air. .
See image for answer...
Answer:
The "grave danger" that the author is talking about is the danger of atomic weaponry
Explanation:
"Preliminary Statement of the Association of Manhattan District Scientists" was a 100-page report written after the atomic bombings in Hiroshima and Nagasaki.
The "grave danger" that the scientist is talking about in the article is the dangers of atomic weaponry. The article talks about the consequences that wrong decisions of leaders may have on its nations.
Answer:
Spain . brainliest?
Explanation:
Spanish leaders formed alliances with some of the Indian tribes and provided them with tools, crops, livestock, and arms. The new materials available to these tribes gave them superior weaponry over their enemies. As Indians acquired horses, they became more mobile.
"C" because the Colonies are young and united.
<span>He oversaw the creation of new federal departments and asked Alexander Hamilton to tackle the nation's debt problem.</span>
