Questions on Biology

Biology
I.ANSWER THE FOLLOWING

What is agriculture?
Science that deals with the growth of plants and animals for human use is called agriculture.

What are the practices of crop production?
a. preparation of soil and sowing.
b. adding manure and fertilizer.
c. types of irrigation.
d. protection from weeds.
e. Harvesting.
f. storage and marketing.

How do you prepare soil for farming ?
a. ploughing
b. leveling and
c. manuring

What is ploughing?
Ploughing is the process of loosening soil. Ploughing is important .

What are the different methods of ploughing
a. manual ploughing
b. ploughing by tractor

What is sowing?
Sowing is the process of putting seeds into the soil.

What is broadcasting?
Broadcasting is the traditional method of sowing where the seeds are sown manually by scattering them in the soil Why do we need manure and fertilizers?
We add manure and fertilizers to the soil in the form of nutrients for healthy growth of plants

What is irrigation?
The process of supplying water to the plants in the field is called irrigation

Write the sources of irrigation?
Some of the sources of irrigation are well, tube walls, r
Rivers, ponds, lakes, dams and canals

Write the different traditional methods of irrigation?
a. Chain pump system
b. Lever system and
c. Pulley system

Write about the modern methods of irrigation
a. Furrow irrigation eg: sugarcane, banana
b. Sprinkler irrigation eg: lawn
c. Basin irrigation eg: paddy field
d. Drip irrigation eg: banana brinjal

What is weeding?
The removal of unwanted plants that grow along maturely is called weeding

What are the common types of weeds?
The common types of weeds are
a. Chenopodium
b. Amaranthus
c. Grass

What are the common methods of removing the weeds?
a. Manual weeding
b. Chemical control

What is harvesting?
The process of cutting and gathering matured crop is