Hydrogen bonds are bonds between a hydrogen in one polar molecule and the negatively charged end of another polar molecule. Hydrogen bonds allow two molecules to link together temporarily. Water molecules are made up of two hydrogen atoms and one oxygen atom, held together by polar covalent bonds.
<h2>Answer is option "A,C & D"</h2>
Explanation:
- Water is basic to life. A satisfactory, sheltered and open inventory must be accessible to all. Improving access to safe drinking-water can bring about huge advantages to well being. Each exertion ought to be made to accomplish a drinking water quality as sheltered as could be expected under the circumstances.
- The lake condition will bolster the development of facultative anaerobes., Fecal coliforms will probably contain chemicals to neutralize harmful oxygen structures,
- Fecal coliforms should procure follow components for development in the lake condition.
- Hence, the right answer is option "A,C, & D".
Answer: Heterotrophs
Explanation: Heterotrophs, also known as other-feeders, can't capture light or chemical energy to make their own food out of carbon dioxide. Humans are heterotrophs. Instead, heterotrophs get organic molecules by eating other organisms or their byproducts. Animals, fungi, and many bacteria are heterotrophs.
Answer: F- Matrix.
Explanation: The cells are embedded in an extra cellular matrix made of fibers and ground substance.
