A salt is an ionic compound which needs a positive charge ion and a negative ion charge to form a salt.This means that the pair of element should be a metal and non-metal.This is simply because metal atoms tend to lose negative charge electrons and form positive ions while non-metals tend to receive the electrons from the metal atom to form negative charge ions.So answer is Cl and Li.
Answer: amino acids can be formed together to make proteins. They can be obtained by food like eggs tofu and nuts. There are 20 different amino acids but the human body only needs 10 of them to live. These 10 amino acids are called essential amino acids. Amino acids are made up of amine , carboxyl and an R group.
Explanation: you can find amino acids on earth from food that is filled with protein . Meat eggs and nuts are good options.
The axons of the ganglion cells leave the eyeball across the retina's surface which are collected in bundles. It leaves the eye to form the optic nerve which is the route of information. Hope this answers the question. Have a nice day.
Answer:
The 3 major observations were:
1. More individuals are produced each generation that can survive.
2. Phenotypic variation exists among individuals and the variation is heritable (through parents' genes).
3. Those individuals with heritable traits better suited to the environment will survive.
Explanation:
Charles Darwin was a British naturalist who proposed the theory of known to everyone as 'The Theory of Evolution' through natural selection.
Bio-Engineering is the use of living vegetation, either alone or in conjunction with civil engineering structures and non-living plant material, to reduce shallow-seated instability and erosion.
<u>Explanation:</u>
DEVELOPMENT OF BIO-ENGINEERING:
In Germany and Austria wishes to use the low-cost local materials and traditional constructions due to their Financial restrictions of pre-war years 1930's
ADVANTAGES OF BIO-ENGINEERING:
Re-establishing vegetation and store the hydrology from the surface to control of accelerated erosion.
Cost-effective treatments:
- landslides
- Roadside failures
- River stream banks
- mining reclamation.
EXAMPLE:
GRASS PLANTING
Usually planting the large grass clumps in lines across the slope.
Horizontal lines are used to increase the protection against erosion.
