NEET BIOLOGY

Detailed explanation-1: -Heat stress has negative effects on plant growth and development by disrupting the stability of various proteins, membranes, and cytoskeleton structures. The most affected stage is the reproductive growth and the affected process is pollen grain development.

Detailed explanation-2: -Temperature. Temperature influences most plant processes, including photosynthesis, transpiration, respiration, germination and flowering. As temperature increases (up to a point), photosynthesis, transpiration and respiration increase.

Detailed explanation-3: -Heat can exacerbate drought, and hot, dry conditions can in turn create wildfire conditions. Buildings, roads, and infrastructure absorb heat, leading to temperatures that can be 1 to 7 degrees F hotter in urban areas than outlying areas – a phenomenon known as the urban heat island effect.

Detailed explanation-4: -CO2 builds up in the atmosphere and causes Earth’s temperature to rise, much like a blanket traps in heat. This extra trapped heat disrupts many of the inter connected systems in our environment. Climate change also affects human health by increasing the frequency and intensity of extreme heat events.