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TLS Online TPP Program

#Question id: 11284

Which of the following could qualify as a top-down control on a grassland community?

#XL - R Botany

  1. limitation of plant biomass by rainfall amount

  2. influence of temperature on competition among plants
  3. influence of soil nutrients on the abundance of grasses versus wildflowers
  4. effect of grazing intensity by bison on plant species diversity
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TLS Online TPP Program

#Question id: 19932

#XL - P Chemistry

If ionising energy of H atom is 13.6 eV, then the second ionising energy of He should be
TLS Online TPP Program

#Question id: 19933

#XL - P Chemistry

The first line in the Balmer series in the H atom will have the frequency
TLS Online TPP Program

#Question id: 19934

#XL - P Chemistry

The orbital configuration of 24Cr is 3d54s1. The number of unpaired electrons in is
TLS Online TPP Program

#Question id: 19935

#XL - P Chemistry

How many electrons in 19Khave n = 3; l=0 ?
TLS Online TPP Program

#Question id: 19936

#XL - P Chemistry

The maximum number of electrons in s, p and d-subshells are
TLS Online TPP Program

#Question id: 19937

#XL - P Chemistry

In an atom which has 2K, 8L, 8M and 2N electrons in the ground state, the total number of electrons having =1are