a. 70.9 h. 715 c. 72.7 the Sarovle A drop down box. Cemparing the nocinal mamaer tenperatire foe 1911 1930 with that of 190/ 1920 thaws a a ( a ) . a. incteating b. mealy c- decataning 4. abern ifecrestise (i) alengr incteatirs 8. at tinet inmrases and decraces at edur times.