Answer:
These are two questions in one here.
First question
Q. a long steep slope that usually separates lands of different heights
answer choices
1. Rand
2. Veld
3. Homeland
4. Escarpment
Answer - Escarpment
Second question
Rain with increased acidity that is caused by air pollutants and other environmental factors
1. BRICS
2. Acid Rain
3. Rand
4. Escarpment
Answer - Acid Rain
Step-by-step explanation:
Scientific discoveries have it that escarpment is that area of the earth where elevation seems to change suddenly. It is sometimes refers to the bottom of a cliff or a steep slope.
Acid rain is that rain or any other form of precipitation that has elevated levels of hydrogen ions. This acidic rain is usually caused by the release of gases such as nitrogen oxide and sulphur dioxide into the atmosphere, which reacts with water molecules of the atmosphere to form acids.
A small portion of these gases come from volcanoes and other natural sources while the major amount of the gases come from the burning of fossilized fuels.