JETS QUIZ 2.0

One of the methods used for combating air pollution is

• burning of solid waste

• provision of sanitary land fills

• legislation against some industrial practices

• scavenging of refuse dumps

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

In summary, the ionic bonds involves.............. TICK ALL THAT APPLIES

• metals and non metals

• transfer of electrons

• donor and acceptor

• atoms of the same size

• atoms opposite each other

How many moles are present in 80g of CaCO₃? [Ca = 40, C = 12, O = 16]

• 1.0

• 0.8

• 0.6

• 0.4

1.    The number of particles in a mole of any element is _________.

• a.       60.23 x 10²³

• a.       6.02 x 10²³

• a.       6.023 x 10²⁴

• 6.02 x 10²⁵

  The type of association in which an organism kills and feeds directly on another organism is called ------------.

• Competition

• Parasitism

• Tolerance

• Contains Avogadro’s number of atoms.

which of these is considered most important in recycling of energy in the ecosystem

• producers

• decomposers

• green plants

• sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Study of insects is

• Enterology

• Entomology

• Entertainment

• Enrology

sodium hydroxide + hydrochloric acid gives _______ salt

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Tastes bitter.

• Acids
• Bases
• Salts
• All

When Pb(NO₃)₂ reacts with NaCl...

• lead chloride and water are produced

• sodium nitrate and lead (II) chloride are produced

• Lead(II) Chloride and water are produced

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5