General Science Ncert Notes Pdf In English

Important Notes on General Science

🧿The hepatitis B vaccine is a safe and effective vaccine that is recommended for all infants at birth and for children up to 18 years. The hepatitis B vaccine is also known as the first “anti-cancer” vaccine because it prevents hepatitis B, the leading cause of liver cancer worldwide.

🧿Hydrogen-enriched CNG (H-CNG) is a blend of hydrogen and CNG, the ideal hydrogen concentration being 18%.

🧿Dew is a type of precipitation where water droplets form on the ground, or on objects near the ground in a process called condensation of moisture.

🧿Burning of crop residues emits traces of carbon dioxide, methane, carbon monoxide, nitrous oxide, sulfur dioxide, and particulates which affect human health.

🧿In India, the use of carbofuran, methyl parathion, phorate and triazophos is viewed with apprehension. These chemicals are used as Pesticides in agriculture.

🧿Singularity and event horizons are related to Black Holes. The standard model of physics tries to explain universal phenomena. String theory is used in the context of quantum physics that is used to understand quantum phenomena.

🧿Viruses are known to infect almost any kind of host that has living cells. Animals, plants, fungi, and bacteria are all subject to viral infection.

🧿Air Quality Index doesn’t include carbon dioxide and methane.

🧿Influenza A (H1N1) virus is the most common cause of human influenza (flu). In June 2009, the World Health Organization (WHO) declared the new strain of swine-origin H1N1 as a pandemic. This strain is often called swine flu by public media.

🧿Zika can be passed through sex, even if the infected person does not have symptoms at the time.

🧿Zika virus is transmitted to people primarily through the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus). These are the same mosquitoes that spread dengue and chikungunya viruses.

Important Notes on General Science

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Important Notes on General Science