IX Sem I Science 2 Test

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Which of the following can be degraded by microbes?

1 point

ash

metals

plastic

iron

Clear selection

Yeast is a heterotrophic algal microbe.

1 point

True

False

Clear selection

Thallophytes do not have speciﬁc parts like root-stem-leaves-ﬂowers and are heterotrophic.

1 point

true

false

Clear selection

Plastic bottles can degrade within a few months.

1 point

Yes

Maybe

Clear selection

2 points

Mixed consumers

Primary consumers

Secondary consumers

Humans

Zooplanktons

Clear selection

Which of the following are decomposers.

1 point

Carnivores

Herbivores

Saprophytes

Parasites

Clear selection

Plants which do not have special structures for reproduction and produce seeds are called ...............

1 point

cryptogams

phanerogams

Thallophytes

gymnosperms

Clear selection

Data from which model is comparatively analysed by statistical methods and predictions?

1 point

Statistical model

Holistic model

Mathematical model

Dynamic model

Clear selection

Which of the following used is a dynamic model ?

1 point

Statistical

Holistic

Geographical

Mathematical

Clear selection

Which of the following is not an abiotic form of Carbon?

1 point

Carhydrayes

Coal

Diamond

Limestone

Clear selection

Banyan is a Dicotyledonous plant.

1 point

True

False

Clear selection

Percentage of carbon dioxide on air is .............. .

1 point

78%

less than 1%

22%

less than 10%

Clear selection

Following are the parts of central processing unit of computer.

1 point

Memory unit

Control unit

ALU unit

All of the above

Clear selection

2 points

Reticulate venation

Rhizoids

Flat slender body shape

Hollow stem

Monocotyledonous plants.

Dicotyledonous plants

Clear selection

Rita uses Internet Explorer as search Engine. She is not getting proper speed. What other options she has.

1 point

Google chrome

Safari

Word

Both a and b

Clear selection

The presence or absence of organs is the ﬁrst criterion for classiﬁcation of ............... .

1 point

fungi

plants

protists

animals

Clear selection

Full Name *

Which of the following is an algae?

1 point

Yeast

Mould

Sargassum

Mushroom

Clear selection

The main process of the carbon cycle from the given processes is ................ .

1 point

Combustion

Decomposition

Corrosion

Respiration

Clear selection

Maize is an example of

1 point

Dicotyledonous plant

Monocotyledonous plant

Pteridophyte

Gymnosperm

Clear selection

Malaria is a protozoan disease.

1 point

Yes

Clear selection

Which of the following is use of Alcanivorax bacteria?

1 point

Absorb metal arsenic

Absorb toxins from the body

Clean Oil spills in oceans

Increase eﬃciency of fuel

Clear selection

Sterilization of roots is done by

1 point

Acid

Peroxide

Alcohol

Nitrogen

Clear selection

Bryophytes reproduce by spore formation.

1 point

true

False

Clear selection

Corrosion occurs due to reaction with which element?

1 point

carbon

oxygen

nitrogen

Clear selection

The meaning of the word 'gymnos' is

1 point

covered

naked

non-ﬂowering

ﬂowering

Clear selection

Full form of NOAA is

1 point

National Organization of Atmospheric Administration

National Oceanographic and Atmospheric Administration

Natural Oceanographic and Atmospheric Administration

National Organization of Atmosphere and Aeronautics

Clear selection

Penicillin is a group of antibiotics obtained from a

1 point

fungus

bacteria

algae

protozoa

Clear selection

A teacher asked few students to prepare a presentation on some topics which software will they use.

1 point

Microsoft word

Microsoft excel

Microsoft power point

Microsoft access

Clear selection

Which of the following is not a factor affecting Climate?

1 point

speed of wind

ground water level

temperature

atmospheric pressure.

Clear selection

............... is a division under Phanerogam

1 point

Thallophyta

Dicotyledonae

Gymnospermae

Monocotyledonae

Clear selection

Which of the following is fermented to make wine?

1 point

Glucose and Fructose

Fructose and Maltose

Glucose and Maltose

Glucose and Cellulose

Clear selection

Ravi saw a computer which had values, consumed lot of electricity, generated heat. It belongs to.

1 point

Second generation

First generation

Fourth generation

Fifth generation

Clear selection

Which of the following is not an example of a Dicotyledonous plant?

1 point

Bamboo

Banyan

Ground nut

Chick pea

Clear selection

Onion plant has a hollow stem.

1 point

Yes

Maybe

Clear selection

.............. is highly reactive and it readily reacts with other elements and compounds.

1 point

Carbon

Nitrogen

Oxygen

Hydrogen

Clear selection

Living organisms of kingdom ................ are the main source of food for all other living organisms.

1 point

Fungi

Monera

Animalia

Plantae

Clear selection

In which region, the carbon cycle is effective?

1 point

Tropical region

Temperate region

Polar region

Aquatic region

Clear selection

Which of the following does not belong to division Thallophyte?

1 point

Mushroom

Spirogyra

Ulva

Ulothrix

Clear selection

6 points

Green peas

Maize

Cycas

Riccia

Fungi

Yeasts and moulds

Thallophyta

Bryophyta

Gymnosperm

Angiosperm

Pentamerous

Trimerous

Clear selection

Milk coagulates due to formation of:

1 point

sugar

acid

salt

base

Clear selection

2 points

Mitochondria

Chloroplast

Respiration

Photosynthesis

Clear selection

Photosynthesis uses which of the primary source of energy?

1 point

Geochemical

Chlorophyll

Carbon dioxide

Sunlight

Clear selection

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