Answer:
Both 1) and 2) are correct.
Explanation: Pollution is the release of harmful and hazardous materials or substances to the environment,it can be in the form of Solids,liquids and gas. The environment can be in the form of AIR ENVIRONMENT OR THE ATMOSPHERE, WATER BODIES OR THE HYDROSPHERE AND SOLID EARTH.
The different environments of the earth has a being a victim of the "evil" or hazardous Activities of man. The Earth is known to be Good while the activities of man has been "evil" or dangerous to the Earth.
Answer: The Civil War started on April 12, 1861 and ended on April 9, 1865. The war erupted when Confederated bombarded Union troops at Fort Sumter; the war had several smaller battles involved and ended four years later.
Answer:B
Explanation:The cotton gin made it easier to clean cotton so more cotton less value.
Answer:
4 years
Explanation:
Let x be the age ( in years ) of each daughters,
∵ Mother is 30 years older than her daughters,
⇒ Age of the mother = x + 30
Now, after 2 years,
The age of each daughter = x + 2,
And, the age of the mother = x + 30 + 2 = ( x + 32 ) years,
According to the question,
3(x+2+x+2) = x + 32
3(2x+4) = x + 32
6x + 12 = x + 32
5x = 20
⇒ x = 4
Hence, each of the daughters is 4 years old.
