Question : Animals in which the cells are arranged in three embryonic layers are called_____.

Option 1: Diploblastic

Option 2: Ectoderm

Option 3: Triploblastic

Option 4: Endoderm

Question : Ozone layer is present in

Option 1: troposphere

Option 2: ionosphere

Option 3: stratosphere

Option 4: exosphere

Question : The approximate amount of silica present in cement is:

Option 1: between 27% and 35%

Option 2: between 37% and 45%

Option 3: between 17% and 25%

Option 4: between 47% and 55%

Question : What is the difference in the number of years between the summer and winter Olympic events?

Option 1: 1

Option 2: 2

Option 3: 4

Option 4: 3

Question : The layer of Earth that separates the crust from the core is:

Option 1: stratosphere

Option 2: mantle

Option 3: magma layer

Option 4: country