The Staff Selection Commission will hold a competitive examination for recruitment
to the posts of Lower Divisional Clerk/ Junior Secretariat Assistant, Postal Assistant/
Sorting Assistant and Data Entry Operators for various Ministries/ Departments/
Offices of the Government of India and various Constitutional Bodies/ Statutory
Bodies/ Tribunals, etc..
Check Details.
Biology - Human Health and Diseases
Following are the diseases that can affect the circulatory system:
⑴ Hypertension:
It is the most common disease affecting the heart and blood vessels. A blood pressure of 120/80 mmHg is considered normal. But the increase in blood pressure beyond 140 mmHg (systolic) and 90 mmHg (diastolic) is called high blood pressure (hypertension). A diet full of oily food is known to increase cholesterol levels, causing thickening of the arteries which results in high blood pressure. Tobacco smoking increases the heart rate, contracts blood vessels and raises blood pressure. High blood pressure can harm the heart, brain, kidneys and eyes.
Worksheet
Q1: In ratio a : b, a is called as _______ or ________.
Q2: In ratio a : b, b is called as _______ or ________.
Q3: Express 75 : 125 in its simplest term.
1. Elasticity:
It is the property of a material by which it tries to regain its original configuration after the removal of the deforming force applied to it. Example of perfectly elastic solid, quartz, phosphor, bronze.
2. Plasticity:
It is the property of a body by virtue of which it does not regain its original shape and size even after the removal deforming force, is called plasticity.
Q1. What are Transgenic crops?
Answer: Genetically modified crops that contain or express one or more useful foreign genes are called transgenic crops.
Q2. What are transgenic animals? Give an example.
Answer: Animals manipulated with the foreign gene and have the ability to express it are transgenic animals. e.g. Rosie, a transgenic cow produced milk containing human alpha-lactalbumin.
Q3. What is BT toxin?
Answer: Bt toxin is an intracellular crystalline protein. It exists as an inactive protoxin that once ingested by an insect, gets activated, binds to the surface of midgut epithelial cells. This causes cell swelling and lysis, leading to the death of an insect.
Class 10 Hindi B - Sapnon Ke Se Din - Questions and Answers
लेखक : गुरदयाल सिंह
प्रश्न १ : कोई भी भाषा आपसी व्यवहार में बाधा नहीं बनती-पाठ के किस अंश से यह सिद्ध होता है ?
उत्तर: लेखक अपने बचपन की घटना बताता है कि उसकी खेलने वाली मंडली में कुछ बच्चे हरियाणा के तथा कुछ राजस्थान के थे। उनकी भाषा सुनने में प्रारंभ में कुछ अटपटी लगी परंतु खेलते समय भाषा पूरी तरह समझ आ जाती थी।
Chapter: Hydrocarbons
Very Short Answer Based Questions (VSQA)
Q1: What are hydrocarbons?
Answer: Hydrocarbons are the compounds of carbon and hydrogen are obtained from coal and petroleum.
Q2: What are alkanes?
Answer: Alkanes are saturated open-chain hydrocarbons containing C—C single bonds.
Q3: How C-C atoms are joined in alkanes? What are the lengths of C-C and C-H bonds?
Answer: In alkanes, C-atoms are tetrahedrally joined together in which C—C and C—H bond lengths are 154 pm and 112 pm respectively.
