Answer:
The correct answers are options C, that is, silver tarnishes and becomes black when exposed to oxygen, and option E, that is, diesel fuel burns when it is heated.
Explanation:
Chemical changes refer to the modifications in which the chemistry at molecular level is modified as the initial substance gets transformed into a new and different final substance. This change occurs with the dissociation of old bond and production of new bonds respectively.
I hope this helps. :).
Answer:
x: Niche
y: habitat
Explanation:
x: because a niche is an action of an animal and one of the bullet points state " describes how a organism interacts with its enviorment "
y: because a habitat is a place that supports an organisms needs and the y section has the same statement.
24. Carbohydrates, lipids, proteins and nucleus acids.
25. The element we can find in proteins but not in carbohydrates is nitrogen.
26. Carbon atoms are the backbone of all organic material or compound.
27. I would say the saturated fats contain at least only single bonds in the carbon chain.
28. The monomers that make up proteins is called amino acids.
29. Enzymes basically create a chemical reactions in the body. Enzymes speed up the rate of a chemical reaction to help support life. Enzymes that are found in your body help to perform very important task including building muscle, destroying toxins and breaking down particles of food during digestion.
Answer: 1 . Ocular lens, 2. I don’t know , 3.course adjustments, 4.the arm, 5.objectives, 6.stage, 7.light source, 8.the base
Explanation:
Answer:
yes pre industrialization the the bark colour was light so the light coloured moths could easily camufladge in it but later on due to industrilization the bark bark turned dark which causes danger for the light colour moths\
Explanation:
