CBSE Class 10 Social Science Water Resources MCQs Set 07

Answer: (b) Tanks

Explanation:
1. In the Peninsular plateau region, the hard rock terrain limits groundwater and canal irrigation.
2. Tanks, which collect and store rainwater and runoff, are the dominant source of irrigation there.

Teacher's Note:
a) Peninsular India's hard-rock terrain favours tank irrigation over canals.
b) Tanks are especially widespread in the southern plateau states.

Answer: (b) A-iii, B-i, C-iv, D-ii

Explanation:
1. Sileru is in Andhra Pradesh (A-iii); Dhuvaran is in Gujarat (B-i); Shabarigiri is in Kerala (C-iv); and Chakra is in Karnataka (D-ii).

Teacher's Note:
a) Sileru = Andhra Pradesh; Dhuvaran = Gujarat.
b) Shabarigiri = Kerala; Chakra = Karnataka.

Answer: (d) Chipko Movement

Explanation:
1. Reni village in Chamoli district, Uttarakhand, is where the Chipko Movement began, led by local women (notably Gaura Devi) hugging trees to stop them being felled.

Teacher's Note:
a) Reni village (Chamoli, Uttarakhand) is the birthplace of the Chipko Movement.
b) Local women hugged trees to prevent commercial felling of the forest.

Answer: (d) 1873

Explanation:
1. The term 'acid rain' was first coined in the 19th century, around 1873.

Teacher's Note:
a) The term 'acid rain' dates back to the 1870s.
b) It was coined to describe rainfall made acidic by atmospheric pollutants.

Answer: (d) Permeable Rocks

Explanation:
1. Rocks that let water pass through quickly are called permeable rocks.

Teacher's Note:
a) Permeable rocks allow water to seep through rapidly.
b) This property affects how groundwater recharges in a region.

Answer: (c) Mahanadi

Explanation:
1. Hirakud Dam is built across the Mahanadi river in Odisha.

Teacher's Note:
a) Hirakud Dam lies on the Mahanadi river.
b) It is one of the longest earthen dams in the world.

Answer: (b) Hugli

Explanation:
1. The Damodar river is a tributary of the Hugli (Hooghly) river, which it joins near Kolkata.

Teacher's Note:
a) Damodar joins the Hugli river, a distributary of the Ganga.
b) It flows through the Chota Nagpur Plateau before reaching the Hugli.

Answer: (a) Decreasing

Explanation:
1. Due to a growing population and finite freshwater resources, water availability per person in India is decreasing over time.

Teacher's Note:
a) Per-person water availability is falling as population grows.
b) This makes water conservation and equitable distribution increasingly important.

Answer: (b) Tamil Nadu

Explanation:
1. Tamil Nadu made rooftop rainwater harvesting compulsory for houses to recharge groundwater and ease water scarcity.

Teacher's Note:
a) Tamil Nadu was the first Indian state to mandate rooftop rainwater harvesting.
b) The rule applies to all houses to help recharge groundwater.

Answer: (b) Rainfall

Explanation:
1. Heavy rainfall, concentrated into fast-flowing channels, cuts deep gullies into the soil, causing gully erosion.

Teacher's Note:
a) Rainfall running off in concentrated channels causes gully erosion.
b) This differs from sheet erosion, where water flows evenly over a larger area.

Answer: (d) Satluj river

Explanation:
1. The Indira Gandhi Canal draws water from the Satluj (Sutlej) river system, carrying it into the Thar Desert region of Rajasthan.

Teacher's Note:
a) The Indira Gandhi Canal's water source is the Satluj river.
b) It irrigates large stretches of the desert in northern Rajasthan.

Answer: (b) Narmada

Explanation:
1. The Sardar Sarovar Dam is built on the Narmada river.

Teacher's Note:
a) Sardar Sarovar Dam is one of the largest dams on the Narmada river.
b) It supplies irrigation and drinking water to parts of Gujarat, Madhya Pradesh, Maharashtra and Rajasthan.