what is the basic unit of life?

• cell

• tissue

• organ

• system

Chloroplast is present in

• animal cell

• fish cell

• dog cell

• plant cell

foodpipe in our body is called

• stomach

• mouth

• esophagus

• spleen

Constipation is a disorder related to our

• respiratory system

• muscular system

• digestive system

• skeletal system

The smallest particle of matter is

• atom

• element

• molecule

• compound

which organ is involved in digestion of food

• lungs

• joints

• stomach

• heart

Respiration is the intake of

• Hydrogen

• helium

• nitrogen

• oxygen

Light travels in

• curved lines

• dotted lines

• zigzag lines

• straight lines

Which lens is diverging lens

• glass

• convex

• concave

• mirror

The biggest natural source of light is

• moon

• sun

• stars

• tube light