Sunlight warming the Earth is an example of heat transfer by radiation, as it does not require a medium.

Mutualism is a symbiotic relationship where both species benefit, such as bees pollinating flowers.

Linux is an example of open-source software, which means its source code is available for anyone to use and modify.

Lactic acid has a chiral center and can exist as two enantiomers, thus exhibiting optical isomerism.

Physisorption involves weak van der Waals forces, and the adsorption of oxygen on activated charcoal is a classic example.

Physisorption involves weak Van der Waals forces, and the adsorption of water on silica gel is a classic example of this type of adsorption.

Pollination in flowering plants is a key process in sexual reproduction, involving the transfer of pollen to fertilize ovules.

1-bromopropane and 2-bromopropane differ in the position of the bromine atom, showing structural isomerism.

Sublimation is the process where a solid turns directly into a gas, as seen with dry ice (solid CO2).

Windows is an example of system software, while the others are application software.

Keto-enol tautomerism is a classic example of tautomeric isomerism.

A balloon inflating when heated is an example of thermal expansion, as the gas inside expands with increased temperature.

Volume is an extensive property, as it depends on the amount of substance present.

An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.

All the given options are trigonometric identities.

A keyboard is an input device used to enter data into a computer.

√4 = 2, 0.25 = 1/4, and 1 is rational. √2 is irrational.

Linux is an operating system, while the others are applications.

Binary fission in amoeba is a form of asexual reproduction where a single organism divides into two.

Land is considered a factor of production, along with labor and capital, as it is a resource used to produce goods and services.

A printer is an external device that connects to a computer to produce a hard copy of documents, making it a peripheral device.

The CPU (Central Processing Unit) is known as the brain of the computer as it performs all the calculations and processing.

Brain, created in 1986, is recognized as the first computer virus that spread in the wild.

Bharatanatyam is considered one of the oldest classical dance forms in India, with origins tracing back to ancient temples in Tamil Nadu.

The noun 'news' is uncountable and treated as singular, so 'is' is correct.

Oak is a tree, while the others are flowers.

log_10(0.01) = log_10(10^-2) = -2.

log_2(32) = log_2(2^5) = 5.

log_a(b^c) = c * log_a(b) by the power rule of logarithms.

Mitochondria are known as the powerhouse of the cell because they produce ATP, the energy currency of the cell.