MEDIUM
Earn 100

Which of the following is a measure for mineral conservation?

50% studentsanswered this correctly

Important Questions on Electromagnetic Induction

EASY
In which of the following both pairs have correct combination?
EASY
How many hotspots of biodiversity in the World have been identified till now? 
HARD
Analyse the effects of ‘Alien species invasion’ on the biodiversity  of  a given area. Provide two examples.
 
EASY
The molarity of urea (molar mass 60 g mol-1) solution obtained by dissolving 15 g of urea in 500 cm3 of water is
MEDIUM
A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution?
MEDIUM
Explain any two reasons which causes the losses of biodiversity.
HARD
An antifreeze solution is prepared from 222.6 g of ethylene glycol C2H6O2 and 200 g of water. Calculate the molality of the solution. If the density of the solution is 1.072 g mL-1, then what shall be the molarity of the solution?
HARD
Write the difference between genetic biodiversity and species biodiversity that exists at all the levels of biological organisations.
MEDIUM
"India has greater ecosystem diversity than Norway." Do you agree with this statement? Give reasons in support of your answer.
EASY

Given below is the representation of the extent of the global diversity of invertebrates. What groups the four portions (A-D) represent respectively?
Question Image

MEDIUM
Which of the following is not a cause for loss of biodiversity?
MEDIUM
Give three hypotheses for explaining why tropics show the greatest levels of species richness.
MEDIUM
Which of the following group exhibit more species diversity?
MEDIUM
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
MEDIUM
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
MEDIUM
What is the significance of the slope of regression in a species-area relationship?
MEDIUM
Which of the following is not an invasive alien species in the Indian context?