Explanation

Answer:

D

Fans help by replacing hot and humid air with cooler, dry air that allows for more evaporation. Cold air evaporates sweat and creates a wind-cooling effect that cools us without affecting room temperature.

Explanation

• gasohol, that is a mixture of 90 percentage unleaded gasoline and 10 percentage ethanol (ethyl alcohol). Gasohol burns nicely in gasoline engines and is a perfect opportunity fuel for positive programs due to the renewability of ethanol, which can be made from grains, potatoes.
• a gasoline aggregate of 10% anhydrous ethanol and ninety% gas occasionally called gasohol, can be used within the inner combustion engines of maximum modern-day automobiles and light-duty motors without need for any change at the engine or fuel machine.
• E10 blends are generally rated as being 2 to a few octane numbers better than regular fuel and are authorized to be used in all new U.S. cars, and mandated in a few regions for emissions and different reasons.

Explanation

Sugar is the most soluble chemical in water.

Sugar is made from sucrose.

Explanation

The oxidation state of Nitrogen in HNO3 is: +5

Explanation

In one year a mature tree will absorb more than 48 pounds of carbon dioxide from the atmosphere and release oxygen in exchange.

Explanation

The return of light or sound waves from a surface.

An image produced by or as if by a mirror. 

Something that brings blame or disgrace It's a reflection on my honesty. 

Careful thought After much reflection, I agreed. 

An opinion formed or a remark made after careful thought.

Explanation

Biodiesel is a form of diesel fuel derived from plants or animals and consisting of long-chain fatty acid esters. 

Explanation

The loss of water vapor to the atmosphere through stomata is a passive process, meaning that metabolic energy in the form of ATP is not required for water movement.

The energy driving transpiration is the difference in energy between the water in the soil and the water in the atmosphere.

Explanation

The molecules are most tightly packed in solid state because of the strong intermolecular forces of attraction.

Explanation

Greenhouse gases are responsible for the greenhouse effect.

The gases that absorb and emit energy within the thermal infrared range.

The primary greenhouse gases include carbon dioxide, methane, ozone, and water vapors.

While the secondary greenhouses are Sulfur dioxide and nitrogen oxides.

*****

Nitrogen is a chemical element

It is a common element in the universe,

Estimated at seventh in total abundance in the Milky Way and the Solar System. 

Symbol: N

Atomic number: 7

Atomic mass: 14.0067 u

Boiling point: -195.8 °C

Discoverer: Daniel Rutherford