Question

Fill in the blanks.

1. Presence of a ______ of combustion is necessary for combustion.

2. ________ and _______ cannot be burnt .

3. _______ burns in air spontaneously, as it's ignition temperature is 35℃ only .

4. _______ are the fuels that exist as liquid at room temperature.

5. _______ is the rise in temperature of the atmosphere of the earth.​

pls answer it ​

Answer 1

1.Heat, Oxygen and Fuel

2.the noble gases are an excellent example

3.phosphorus is heated to 35 °C, it will not catch fire. 

4.hydrogen fuel (for automotive uses), ethanol, and biodiesel

5.The thermosphere is the uppermost layer of the atmosphere, and thetemperatures again begin to rise here

Answer 2

Answer:

1.air

2 . ice and water

3 phosphorus

4 gasoline

5.0.6 to 0.9degree crlcius