Which of the following is an example of a point/stationary source of chemicals?
Airplane
Factory
Bus
Car

B- Factory

Explanation:

Factory’s usually make objects with the use of chemicals and when the smoke comes out, so does the chemicals in the air. this is also why factory workers have to wear masks/shields when working.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).