Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Human activities are changing Earth's natural greenhouse1. ________Burning fossil fuels like coal and oil puts 2. ________carbon dioxide into our atmosphere. NASA has 3. ___________increase in the amount of carbon dioxide and some other greenhouse gases in 4. ________atmosphere. Too much of these greenhouse gases can 5. ____________Earth's atmosphere to trap more and more heat. This causes Earth to warm up.

Question:
Select the most appropriate option to fill in the blank No. 5.

Option 1: effect

Option 2: reason

Option 3: source

Option 4: cause

Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Human activities are changing Earth's natural greenhouse 1.

Question : Comprehension:

In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Human activities are changing Earth's natural greenhouse

Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Human activities are changing Earth's natural greenhouse 1.

Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Human activities are changing Earth's natural greenhouse 1.

Question : Comprehension:

In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Global warming is one of the biggest environmental (1)____________ facing the world