Quiz in Steemit. Participate to win 1/1

Good afternoon dear Steemit users.
Do you want to participate in our quiz Steemit?
Then please read the rules.

Rules of participation in the quiz Steemit.

In order to participate in our quiz,
you must first of all add yourself as a friend,
then answer a series of questions in the comments (separated by commas).
"Example 1)a,2)c,3)c ..........."
and vote for the article in question. The winner will be determined
by the cumulative total of responses for the month.
The prize will be 80% Steemit
of the total collected, in voting for the past month.
The more people who play and vote,
the more money the winner will receive.

So play and win.
And so let's get started.

1)Who wrote the novel "Crime and Punishment"?
(a) Fyodor Dostoevsky
(b) Leo Tolstoy
(c) Alexander Pushkin
(d) Ivan Turgenev

2)What gas makes up most of Earth's atmosphere?
a) Hydrogen
b) Nitrogen
(c) Carbon dioxide
d) Oxygen

3)Which of these languages is not a Romance language?
a) French
b) Italian
c) Greek
d) Spanish

4)Which of the following planets in the solar system has no natural satellites?
a) Mars
(b) Jupiter
(c) Venus
d) Uranus

5)Which of the following U.S. presidents was the first African American president?
a) George W. Bush
b) Ronald Reagan
(c) Bill Clinton
d) Barack Obama

6)Which country has the largest land area in the world?
a) China
b) USA
c) Russia
d) Canada

7)Which chemical element is the most abundant in the universe?
a) Helium
b) Oxygen
c) Hydrogen
d) Nitrogen

8)Who wrote "Hamlet"?
a) Charles Dickens
(b) William Shakespeare
(c) Oscar Wilde
(d) Jane Austen

9)Which ocean is the largest in area?
a) Indian Ocean
(b) Arctic Ocean
(c) Pacific Ocean
d) Atlantic Ocean

10)Which athlete is known as "The Hammer" and is a boxing legend?
a) Mike Tyson
b) Muhammad Ali
c) Floyd Mayweather
d) Evander Holyfield