List of top Science Questions

Which one of the following molecules is produced initially when glucose breaks down in the cytoplasm of a cell in aerobic as well as anaerobic respiration ?

As compared to daytime, the amount of carbon dioxide released by the plants during night is more because :

Select from the following compounds which is not a base :

Consider the following substances : (i) Acidified K$_2$Cr$_2$O$_7$
(ii) Alkaline KMnO$_4$
(iii) Oxygen
(iv) Hydrogen
Out of these, the commonly used oxidising agents are :

Measure of mass of water vapour for a given mass of dry air (in g/kg) is referred to as

Arrange the coal types from lowest to highest rank?
(A) Brown coal
(B) Sub bituminous
(C) Hard coal
(D) Soft coal
Choose the correct answer from the options given below:

Identify the correct classification of resources based on supply.

Which macro-nuutrient intake during training session is advisable to be concentrated upon with highest percentage in daily diet.

Which of the following statements are correct with regard to daily energy requirements?
A. Proteins are major source of energy
B. For every kg. of body weight 1.3 calories of energy is required every 24 hrs.
C. 25% of fat is required in the diet.
D. Approximately 60% of energy shall come from carbohydrate
E. The consumption of excess fat, prior to exercise increase the performance.
Choose the correct answer from the options given below :

Name the component which protect and regulates various body processes.

Glycogen-storage can be used by an individual during____.

Newton's first law of motion is also known as -

If a gear 'A' having 50 teeth and running at a speed of 200 rpm is driving to another gear 'B' having 125 rpm. How many number of teeth are there in gear 'B'?

A 6-hour storm with hourly intersities of 7, 18, 25, 12, 10 and 3mm per hour produced a run off 33 mm. Then the Φ index is

What is the effective atomic number (EAN) of [Cd(NH₃)₄]²⁺ ?

The correct statements are:
A. Energy payback time (EPBT) should be less than life of PV System
B. Life cycle conversion efficiency (LCCE) should be less than one
C. Energy production factor (CEPF) on life time basis should be more than one
D. Carbon emission is more if electrical power is generated by PV in comparision to the electrical power generated by conventional power plant
Choose the correct answer from the options given below:

A light ray entering at an angle θi from the normal into a new material with a faster speed _______.

The Gondwana coals formed during-

Given below are two Statement :
Statement I: Complex carbohydrates should be the principle source of calories in the diet.
Statement II: Carbohydrates have been unfairly implicated as a cause of obesity as in recent years there is hype associated with low carbohydrate diets.
In the light of the above statements, choose the most appropriate answer from the options given below :

From the following arrange the sequence of blood flow in heart according to human circulatory system.
A. Pulmonary Arteries
B. Superior Vena Cava
C. Pulmonary Valve
D. Right Ventricle
E. Right Atrium
Choose the correct answer from the options given below:

___ is the maintenance of relatively stable conditions in the body's internal environment produced by body's regulatory process.

Which of the following planets is not a dwarf planet?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The process of conversion of nitrogen \((N_2)\) to ammonia by living organisms is called biological nitrogen fixation.
Reason R: Nitrogenase enzyme which is capable of nitrogen reduction is present exclusively in Eukaryotes.
In the light of the above statements, choose the most appropriate answer from the options given below.

Warebandi system is

What is the Recommended Dietary Allowance (RDA) of protein for an Adult men?