State whether the following statements are true or false.A normal man respires 70-80 times in a minute.
State whether the following statements are true or false. If false, correct them.
(a) Plants consume oxygen for respiration.
(b) Plants produce oxygen during the process of making their own food.
(c) Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
(d) Air does not occupy any space.
Question 59 State whether the statement is True or False. We can draw exactly one triangle whose angles are 70∘,30∘ and 80∘.
Question 90
In the following question, state whether the given statements are true (T) or false (F).
am×bm=(ab)m
Question 81
ap×bq=(ab)pq