Which of the following is a chemical property?

Correct Answer: The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases Earth's atmosphere is composed of many gases Their percentages by volume is given by:: 78% Nitrogen, 21% Oxygen, 09% Argon, and 003% Carbon dioxide And very small percentages of other elements

Correct Answer: All the above

Explanation:

Global warming is the increase in the earth?s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world.

 

Natural Causes include :

1. Solar Activity

2. Melting Permafrost

3. Forest Fires 

 

Human made causes include :

1. Deforestation

2. Overpopulation

3. Landfills

4. Mining

5. Fertilizer Use

Correct Answer: Long bones

Explanation:

The phalanges or a phalanx are/is digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.

Correct Answer: Glucose

Explanation:

Glucose is the major monosaccharide found in the body. It is absorbed directly into the bloodstream duringdigestion and a vital carbohydrate as it is a source of energy.

 

Correct Answer: Chlorine

Explanation:

Nutrients that are needed in large amounts are called Macronutrients.

 

There are three macronutrients required by humans:

1. carbohydrates (sugar),

2. lipids (fats), and

3. proteins.

 

Each of these macronutrients provides energy in the form of calories.

 

Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).

Correct Answer: a surface exposed by a retreating glacier

Explanation:

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

Correct Answer: charophytes

Explanation:

The charophytes are the extant group of green algae that are most closely related to modern land plants.

Correct Answer: Phospholipids

Explanation:

Cell membranes are made up of phospholipids which prevents them from dissolving in water.

Correct Answer: 120/80 mmHg

Explanation:

Healthy blood pressure ranges from 120/80 to 90/60.

Correct Answer: unicellular

Explanation:

An organism is a living thing, and there are two broad categories of organisms: those made up of only a single cell, and those made up of multiple cells.

Single-celled organisms means which contains only one cell are called unicellular organisms. 'Uni-' means 'one,' so the name 'unicellular' literally means 'one cell.'

 

Examples of Unicellular or Single celled organisms ::

 

Prokaryotic organisms like Bacteria,...

Some algae like green algae, euglena,...