Question

the second sino - japanese war begins between china and japan.
nazi germany invades poland, marking the beginning of world war ii.
japan attacks the united states at the pearl harbor naval base in oahu.
japan invades manchuria to gain a foothold in mainland asia.

Explanation:

To solve this, we match each event with its correct year:

Step 1: Analyze "The Second Sino - Japanese War begins between China and Japan"

The Second Sino - Japanese War began in 1937.

Step 2: Analyze "Nazi Germany invades Poland, marking the beginning of World War II"

Nazi Germany's invasion of Poland, which started WWII, was in 1939.

Step 3: Analyze "Japan attacks the United States at the Pearl Harbor naval base in O'ahu"

The Pearl Harbor attack by Japan on the US was in 1941.

Step 4: Analyze "Japan invades Manchuria to gain a foothold in mainland Asia"

Japan's invasion of Manchuria was in 1931.

So the correct matches are:

• The Second Sino - Japanese War begins between China and Japan: 1937
• Nazi Germany invades Poland, marking the beginning of World War II: 1939
• Japan attacks the United States at the Pearl Harbor naval base in O'ahu: 1941
• Japan invades Manchuria to gain a foothold in mainland Asia: 1931

Answer:

To solve this, we match each event with its correct year:

Step 1: Analyze "The Second Sino - Japanese War begins between China and Japan"

The Second Sino - Japanese War began in 1937.

Step 2: Analyze "Nazi Germany invades Poland, marking the beginning of World War II"

Nazi Germany's invasion of Poland, which started WWII, was in 1939.

Step 3: Analyze "Japan attacks the United States at the Pearl Harbor naval base in O'ahu"

The Pearl Harbor attack by Japan on the US was in 1941.

Step 4: Analyze "Japan invades Manchuria to gain a foothold in mainland Asia"

Japan's invasion of Manchuria was in 1931.

So the correct matches are:

• The Second Sino - Japanese War begins between China and Japan: 1937
• Nazi Germany invades Poland, marking the beginning of World War II: 1939
• Japan attacks the United States at the Pearl Harbor naval base in O'ahu: 1941
• Japan invades Manchuria to gain a foothold in mainland Asia: 1931