Name the following :(1) Substances formed when fuel burns.(2) Layers

1.	Name the following :(1) Substances formed when fuel burns.(2) Layers of the atmosphere.(3) Layers of land.(4) Gas necessary for building proteins.
Answer» (1) Carbon dioxide, carbon monoxide, nitrogen dioxide, sulphur dioxide and smoke. (2) Troposphere, stratosphere, mesosphere, ionosphere and exosphere. (3) Humus, mature soil, immature soil, small rocks and stones and bedrock. (4) Nitrogen.

Name the following :(1) Substances formed when fuel burns.(2) Layers of the atmosphere.(3) Layers of land.(4) Gas necessary for building proteins.

Answer»

(1) Carbon dioxide, carbon monoxide, nitrogen dioxide, sulphur dioxide and smoke.

(2) Troposphere, stratosphere, mesosphere, ionosphere and exosphere.

(3) Humus, mature soil, immature soil, small rocks and stones and bedrock.

(4) Nitrogen.