BCS : Green House Effect refers to- [12th BCS]

(a) Deficiency in photosynthesis due to lack of sunlight
(b) Increase in overall temperature due to heat trapping
(c) Increasing need for artificial cultivation instead of natural cultivation
(d) Spread of deserts due to loss of vegetation cover

Answer : (b) Increase in overall temperature due to heat trapping

BCS : Remote Sensing specifically means- [12th BCS]

(a) Remote data collection with radio transmitters
(b) Observation of the surrounding environment with the help of radar
(c) Detection of signals from cosmic sources
(d) Remote observation of Earth with the help of satellites

Answer : (d) Remote observation of the earth with the help of satellites

BCS : Sailboats are used to move completely against the wind in front of them, that is – [12th BCS]

(a) The reaction is used instead of the verb
(b) The force fraction is kept effective in the forward direction
(c) Control of the tension in the sail ropes by effecting the wind in particular directions
(d) A flock-shaped technique can be used

Answer : (b) The force fraction is kept active in the forward direction