Geology and Geophysics
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE GG-1 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.
Question 16
Open questionGGNAT1 markNeeds review
A watershed has an area of 74 km
. The stream network within this watershed consists of three different stream orders. The stream lengths in each order are as follows:I
order streams: 3 km, 2.5 km, 4 km, 3 km, 2 km, 5 kmII
order streams: 10 km, 15 km, 7 kmIII
order streams: 30 kmThe drainage density of the watershed is __________ km/km
(Round off to two decimal places)
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Open questionGGNAT1 markNeeds review
A sample contains 7 wt% CaO and 5 wt% MgO. The molar ratio of CaO to MgO in the sample is __________
(Round off to two decimal places)
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Open questionGGMCQ2 marksNeeds review
Select the option that lists oxide minerals only.
Your answerChoose one option.
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