The bond between one carbon atom and one oxygen atom is polar but due to the fact that there is another oxygen attached to the carbon which has the same electronegativity value as the oxygen on the other side, the effect of polarity is canceled.

is non-polar because the oxygens symmetrically alligned on the opposite sides of the carbon cancel the polarity effect.
Answer: i- fraternal or dyzygotic twins
ii- monozygotic twins
Explanation: dyzygotic twins develop when two separate oocyte are fertilised by two different spermatozoa. They are also referred to as nonidentical or fraternal twins. They can be of the same or different sex.
Monozygotic twins develop when one oocyte fuses with one spermatozoa and splits into two after fertilization. These twins are also known as identical twins as they will be of the same sex and have the same gene, blood groups and physical features. They may be of different sizes and often have very different personalities and characters.
The correct answer would be C please tell me if I am wrong
I believe the answer is environmental pollution
<h2>Chemical energy</h2>
Explanation:
Chemical energy describes the energy conversions that occur during the light-independent reactions
- Photosynthesis is completed in two reactions namely light reaction and dark reaction
- Light reaction is the light dependent reaction which means that there is direct role of light
- It oxidizes water,release oxygen and generates high energy compound such as ATP and NADPH(all the reactions are completed in thylakoid membrane)
- Dark reaction is the light independent reaction which means there is no direct role of light
- It utilizes carbon dioxide to form carbohydrates and consume ATP and NADPH for synthesis of carbohydrate(Calvin cycle)
- All reactions are completed in stroma
- Fixation of one carbon dioxide molecule requires 3 ATP,2 NADPH,2 water molecules and 8 photons