Question

1) What is the proportion of oxygen in the atmosphere?
A) 21%
C) 78%
B) 71%
D) 1%
2) What is the place nearest the focus of an earthquake on the surface of the ear called?
A) Earthquake center
C) Epicenter
B) Focal center
D) Landslide center
3) When did the tsunami disaster occur in Japan?
A) 15th Jan 2010
C) 11th March 2011
B) 13th Aug 2009
D) 14th Dec 2012
4) How many times does a man breathe everyday?
A) 22000 times
C) 12500 times
B) 81000 times
D) 175000 times
5) When is 'World Ozone Day celebrated in the world?
A) 28th October
C) 1st January
B) 16th September
D) 5th June​

Answer 1

Answer:

1) 21% oxygen

2)epicenter

3)11 March 2011

4)22,000 times a day

5)September 16

Explanation:

1)Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

2)The location below the earth's surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter. Sometimes an earthquake has foreshocks.

3)the tsunami disaster occured on 11 March 2011 in Japan.

4) a man breathe 22,000 times a day everyday

5) 'World Ozone Day celebrated on September 16

Answer 2

Answer:

answer is (5):16th September

answer is (1) : 21%

answer is (2): Epicenter

answer is (3):11th March 2010

answer is (4):22000times