Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.1. The detection of gravitational waves opened a new window into understanding the universe, allowing astronomers to observe phenomena that were previously invisible.2. Despite its significance, this discovery also posed questions about the sustainability of space exploration and its environmental impact on Earth.3. This breakthrough led to a deeper understanding of black holes and neutron stars, shedding light on some of the most mysterious objects in the cosmos.4. One of the most remarkable achievements in recent years has been the direct observation of gravitational waves, confirming a major prediction of Einstein's theory of relativity.5. As a result, scientists were able to provide more evidence supporting the Big Bang theory, offering insights into the early moments of the universe.

Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.1. Among these innovations, gene editing techniques like CRISPR-Cas9 have revolutionized the way we can manipulate genetic material, offering new possibilities in medicine.2. Biotechnology has also paved the way for the development of biofuels, which are seen as a sustainable alternative to fossil fuels and help in reducing carbon emissions.3. The field of biotechnology has seen remarkable advancements in recent years, with breakthroughs in genetic engineering and molecular biology.4. However, the ethical implications of cloning have sparked significant debate, particularly concerning the cloning of entire organisms.5. These advancements include personalized medicine, where treatments are tailored to an individual's genetic makeup, enhancing the effectiveness of therapies.

Five sentences related to a topic are given below. Four of them can be put together to form a meaningful and coherent short paragraph. Identify the odd one out. Choose its number as your answer and key it in.As a result, discoveries can be made long after a telescope has been decommissioned.In doing so, the Kepler telescope has made “exoplanet research” one of the busiest areas of astronomy.Some of these worlds are far enough from their stars for liquid water to exist on the surface, meaning that these worlds would possibly be hospitable to life.Since then, it has spotted 2700 alien worlds.The Kepler telescope was launched into space in 2009 to look for extrasolar planets, those that circle stars other than the sun.

Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.1. With species extinction rates soaring, the UN aims to protect 30% of Earth's land and oceans by 2030.2. Conservation AI researchers have pioneered models that effectively analyze footage and images from drones and camera traps, identifying wildlife, including critically endangered species, and tracking their movements.3. This platform allows approved users to upload data and opt-in for email notifications upon detecting species of interest.4. They have developed a free online platform enabling automatic analysis of images, videos, or dio files, including real-time camera-trap footage.5. This rapid data processing by AI proves vital in enabling conservationists to swiftly respond to imminent threats like poaching and fires.

Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.1. Light behaves as a wave when it exhibits properties like interference and diffraction, which are fundamental characteristics of waves.2. The particle nature of light is evident in the photoelectric effect, where light knocks electrons off a material, demonstrating its particle-like properties.3. The wave and particle aspects of the same phenomenon were announced by Niels Bohr in 1928.4. The wave-particle duality of light is a cornerstone of quantum mechanics, illustrating that light possesses both wave-like and particle-like properties.5. When light passes through a double-slit, it creates an interference pattern on a screen, a behavior typical of waves.

Five sentences related to a topic are given below. Four of them can be put together to form a meaningful and coherent short paragraph. Identify the odd one out. Choose its number as your answer and key it in.Not for the first time, some energy firms fooled themselves into believing that newfangled technologies and funding mechanisms could let them defy laws of financial gravity.This year, new solar installations in America are expected to more than double.Last year, for the first time, the world invested more in photovoltaic cells than in coal-and gas-fired power generation combined.In some respects, this is a bumper era for solar energy.China, which has more solar capacity than any other country, plans to triple it by the end of the decade.