Answer:
True
Explanation:
Precambrian, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago. ... The Precambrian represents more than 80 percent of the total geologic record.
The principle fuel used as a petrol substitute for road transport vehicles is bioethanol. Bioethanol fuel is mainly produced by the sugar fermentation process, although it can also be manufactured by the chemical process of reacting ethylene with steam.
Basically, a plant can be considered as bioethanol becacuse it is a sugar fuel for animals. Animals consume plants for fuel to survive.
<h2>Correct Answer is option "d"</h2>
Explanation:
- Heroine is an drug of opiod plant which is made up of from morphine,a natural substance which taken from the seed pod of the different opium poppy plants.
- Heroine is found in various form such as in white powder and brown powder.
- Other common names for heroine are horse,smack & hell dust.
- People takes heroine in different route of administration such as few people smoke it, some inject, or other used as sniff etc.
- Heroine enter in brain rapidly and combined with opiod receptors on cells ,it involve in pain and pleasure,controlling heart rate etc.
- It show both effects short term and long term effect on the brain and body.
- Hence, the correct answer is option d "Heroine"
Answer:
Starch + H2O = maltose
This reaction gives the Starch and H2O as the reactants and Maltose as the product.
Amylase is an enzyme which helps in the digestion of Starch molecules and its activity can however be measured through careful monitoring of the disappearance of amylase substrate which is in this case, starch.
It is needed by all living things and every living cell to carry out life processes, such as breaking down and building up molecules, and transporting many molecules across cell membranes. The form of energy that living things need for these processes is chemical energy, and it comes from food.
